LYNCH, Circuit Judge.
This case, of first impression for this circuit, involves the interpretation of a sentencing guideline that is frequently used to enhance sentences for those convicted of drug-related crimes, see U.S.S.G. § 2Dl.l(b)(15)(E), and is potentially applicable to a wide range of other offenses, see id. § 4B1.8.
On July 7, 2015, Marco Gordon pled guilty to conspiracy to possess with intent to distribute, and possession with intent to distribute, more than 28 grams of cocaine base, see 21 U.S.C. §§ 846, 841(a)(1), and 841(b)(1)(B), for his role in a drug-trafficking organization that operated primarily in Portland, Maine from October 2013 to January 2015. He does not dispute that he held a leadership role in the illicit organization, which was responsible for trafficking approximately 839 grams of cocaine base during a fifteen-month period.
Gordon appeals only his sentence of 132 months of imprisonment, arguing that the district court improperly applied a two-level enhancement — for offenses committed “as part of a pattern of criminal conduct engaged in as a livelihood,” U.S.S.G. §§ 2Dl.l(b)(15)(E), 4B1.3 — both by misinterpreting the guideline and by making erroneous predicate findings of fact.
In order to apply that criminal livelihood enhancement, the court needed to find that over a twelve-month period, Gordon “derived income” in excess of $14,5001 from drug trafficking and engaged in drug-trafficking as his “primary occupation.” Id. § 4B1.3 app. n.2. We affirm Gordon’s sentence because the district court did not commit legal error when it used Gordon’s gross, rather than net, income derived from drug trafficking to determine that his income surpassed the $14,500 threshold, nor did the court commit factual error when it concluded that drug trafficking was Gordon’s primary occupation.
I.
On January 9, 2015, Gordon was arrested in an apartment in Portland, Maine in connection with a fifteen-month federal investigation into a drug-trafficking organization that had operated in “Michigan, Connecticut, and Portland, Maine, though the primary location was in Portland.” During a search incident to Gordon’s arrest, officers found $990 and 0.31 grams of cocaine base in his pockets, and they found an additional $3,425.46 and 183.6 grams of [128]*128cocaine base in the apartment. Gordon was indicted on January 29, 2015, along with four co-defendants, for his role in an interstate drug conspiracy.
Gordon pled guilty on July 7, 2015 to possessing with the intent to distribute in excess of 28 grams of cocaine base, 21 U.S.C. § 841(a)(1), (b)(1)(B), and conspiring to do the same, id. § 846. Gordon does not dispute that the money and drugs seized during his arrest (with a street value of roughly $28,935) belonged to him and that the conspiracy to which he belonged trafficked at least 671 grams of cocaine base (with a street value of roughly $89,480) during the twelve months preceding his arrest.
At a November 6, 2015 sentencing hearing, the district court calculated Gordon’s Guidelines Sentencing Range (“GSR”) to be 188 to 235 months. That GSR included a two-level enhancement, sought by the government, which applies when “[t]he defendant committed [the relevant] offense as part of a pattern of criminal conduct engaged in as a livelihood.” U.S.S.G. §§ 2Dl.l(b)(15)(E), 4B1.3. The court applied that enhancement over Gordon’s objection but ultimately sentenced him to 132 months of imprisonment, which represented a 56-month downward variance from the low end of the resulting GSR. On November 18, 2015, Gordon appealed his sentence to this court, limiting his challenge to whether the district court erred in applying the criminal livelihood enhancement.
The criminal livelihood enhancement applies where the government proves, by a preponderance of the evidence, that two conditions have been met: (1) the defendant committed the relevant offense as “part of a pattern of criminal conduct” and (2) the defendant was engaged in that conduct “as a livelihood.” Id §§ 2Dl.l(b)(15)(E), 4B1.3. On appeal, Gordon argued only that the government had failed to meet its burden as to the second condition.
The Guidelines further divide that second condition into two prongs. A defendant was engaged in a pattern of criminal conduct “as a livelihood” only if:
(A) the defendant derived income from the pattern of criminal conduct that in any twelve-month period exceeded 2,000 times the then existing hourly minimum wage under federal law[,] [meaning $14,500 in the instant case]; and
(B) the totality of circumstances shows that such criminal conduct was the defendant’s primary occupation in that twelve-month period (e.g., the defendant engaged in criminal conduct rather than regular, legitimate employment; or the defendant’s legitimate employment was merely a front for the defendant’s criminal conduct).
Id. § 4B1.3 app. n.2. Gordon argued on appeal, as he had before the district court, that the government had failed to meet its burden as to both prongs.
As to the first prong, Gordon argued that the court had erred in finding that he had derived “income” in excess of $14,500 from drug trafficking during the relevant time period because the court had considered his gross, rather than net, income, and that if the court had properly deducted the expenses related to his drug trafficking, it would have found that his earnings fell short of the threshold. Gordon also argued that the court had overestimated his income by twenty percent because it had not identified a twelve-month period to consider and had thus implicitly treated all of the income he had earned over the fifteen-month life of the conspiracy as if he had earned it in a year. As to the second prong, Gordon argued that the court had erred in finding that drug trafficking had been his primary occupation [129]*129because his primary occupation had actually been his legitimate self-employment as a barber.
The premise of Gordon’s first argument — that in order to apply the criminal livelihood enhancement, a district court must, as a matter of law, find that a defendant’s net, rather than gross, income from criminal activity exceeded $14,500 — raised an issue of first impression in this circuit. Gordon made that argument, albeit for the first time, during the sentencing hearing. But the prosecution did not take a position on that argument. And the district court determined that Gordon’s income met the $14,500 threshold without explicitly stating “whether its finding was based on the net [or] gross[] approach.” As a result, “we [were] unable to address [a] key issue[ ] on appeal,” and so we sought clarification from the district court as to what exactly it had decided. On December 12, 2016, this court issued an order remanding the ease, requesting that the district court clarify its findings relevant to Gordon’s first argument on appeal. We invited the district court to “take further evidence and make further findings” if necessary.
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LYNCH, Circuit Judge.
This case, of first impression for this circuit, involves the interpretation of a sentencing guideline that is frequently used to enhance sentences for those convicted of drug-related crimes, see U.S.S.G. § 2Dl.l(b)(15)(E), and is potentially applicable to a wide range of other offenses, see id. § 4B1.8.
On July 7, 2015, Marco Gordon pled guilty to conspiracy to possess with intent to distribute, and possession with intent to distribute, more than 28 grams of cocaine base, see 21 U.S.C. §§ 846, 841(a)(1), and 841(b)(1)(B), for his role in a drug-trafficking organization that operated primarily in Portland, Maine from October 2013 to January 2015. He does not dispute that he held a leadership role in the illicit organization, which was responsible for trafficking approximately 839 grams of cocaine base during a fifteen-month period.
Gordon appeals only his sentence of 132 months of imprisonment, arguing that the district court improperly applied a two-level enhancement — for offenses committed “as part of a pattern of criminal conduct engaged in as a livelihood,” U.S.S.G. §§ 2Dl.l(b)(15)(E), 4B1.3 — both by misinterpreting the guideline and by making erroneous predicate findings of fact.
In order to apply that criminal livelihood enhancement, the court needed to find that over a twelve-month period, Gordon “derived income” in excess of $14,5001 from drug trafficking and engaged in drug-trafficking as his “primary occupation.” Id. § 4B1.3 app. n.2. We affirm Gordon’s sentence because the district court did not commit legal error when it used Gordon’s gross, rather than net, income derived from drug trafficking to determine that his income surpassed the $14,500 threshold, nor did the court commit factual error when it concluded that drug trafficking was Gordon’s primary occupation.
I.
On January 9, 2015, Gordon was arrested in an apartment in Portland, Maine in connection with a fifteen-month federal investigation into a drug-trafficking organization that had operated in “Michigan, Connecticut, and Portland, Maine, though the primary location was in Portland.” During a search incident to Gordon’s arrest, officers found $990 and 0.31 grams of cocaine base in his pockets, and they found an additional $3,425.46 and 183.6 grams of [128]*128cocaine base in the apartment. Gordon was indicted on January 29, 2015, along with four co-defendants, for his role in an interstate drug conspiracy.
Gordon pled guilty on July 7, 2015 to possessing with the intent to distribute in excess of 28 grams of cocaine base, 21 U.S.C. § 841(a)(1), (b)(1)(B), and conspiring to do the same, id. § 846. Gordon does not dispute that the money and drugs seized during his arrest (with a street value of roughly $28,935) belonged to him and that the conspiracy to which he belonged trafficked at least 671 grams of cocaine base (with a street value of roughly $89,480) during the twelve months preceding his arrest.
At a November 6, 2015 sentencing hearing, the district court calculated Gordon’s Guidelines Sentencing Range (“GSR”) to be 188 to 235 months. That GSR included a two-level enhancement, sought by the government, which applies when “[t]he defendant committed [the relevant] offense as part of a pattern of criminal conduct engaged in as a livelihood.” U.S.S.G. §§ 2Dl.l(b)(15)(E), 4B1.3. The court applied that enhancement over Gordon’s objection but ultimately sentenced him to 132 months of imprisonment, which represented a 56-month downward variance from the low end of the resulting GSR. On November 18, 2015, Gordon appealed his sentence to this court, limiting his challenge to whether the district court erred in applying the criminal livelihood enhancement.
The criminal livelihood enhancement applies where the government proves, by a preponderance of the evidence, that two conditions have been met: (1) the defendant committed the relevant offense as “part of a pattern of criminal conduct” and (2) the defendant was engaged in that conduct “as a livelihood.” Id §§ 2Dl.l(b)(15)(E), 4B1.3. On appeal, Gordon argued only that the government had failed to meet its burden as to the second condition.
The Guidelines further divide that second condition into two prongs. A defendant was engaged in a pattern of criminal conduct “as a livelihood” only if:
(A) the defendant derived income from the pattern of criminal conduct that in any twelve-month period exceeded 2,000 times the then existing hourly minimum wage under federal law[,] [meaning $14,500 in the instant case]; and
(B) the totality of circumstances shows that such criminal conduct was the defendant’s primary occupation in that twelve-month period (e.g., the defendant engaged in criminal conduct rather than regular, legitimate employment; or the defendant’s legitimate employment was merely a front for the defendant’s criminal conduct).
Id. § 4B1.3 app. n.2. Gordon argued on appeal, as he had before the district court, that the government had failed to meet its burden as to both prongs.
As to the first prong, Gordon argued that the court had erred in finding that he had derived “income” in excess of $14,500 from drug trafficking during the relevant time period because the court had considered his gross, rather than net, income, and that if the court had properly deducted the expenses related to his drug trafficking, it would have found that his earnings fell short of the threshold. Gordon also argued that the court had overestimated his income by twenty percent because it had not identified a twelve-month period to consider and had thus implicitly treated all of the income he had earned over the fifteen-month life of the conspiracy as if he had earned it in a year. As to the second prong, Gordon argued that the court had erred in finding that drug trafficking had been his primary occupation [129]*129because his primary occupation had actually been his legitimate self-employment as a barber.
The premise of Gordon’s first argument — that in order to apply the criminal livelihood enhancement, a district court must, as a matter of law, find that a defendant’s net, rather than gross, income from criminal activity exceeded $14,500 — raised an issue of first impression in this circuit. Gordon made that argument, albeit for the first time, during the sentencing hearing. But the prosecution did not take a position on that argument. And the district court determined that Gordon’s income met the $14,500 threshold without explicitly stating “whether its finding was based on the net [or] gross[] approach.” As a result, “we [were] unable to address [a] key issue[ ] on appeal,” and so we sought clarification from the district court as to what exactly it had decided. On December 12, 2016, this court issued an order remanding the ease, requesting that the district court clarify its findings relevant to Gordon’s first argument on appeal. We invited the district court to “take further evidence and make further findings” if necessary.
On January 27, 2017, the district court issued an order in response to the remand clarifying that it had utilized the gross-income approach and reiterating its conclusion that, under that approach, the criminal livelihood enhancement applied.2 See United States v. Gordon, No. 2:15-cr-27-GZS, 2017 WL 383349, at *2 (D. Me. Jan. 27, 2017). The court explained that the “derived income” language in § 4B1.3 app. n.2(A) allows a district court to use a defendant’s gross income. It reasoned that if the Guidelines had meant to require a court to consider a defendant’s net income, then they would have provided “specific guidance ... regarding how to calculate net income for the many offenses covered by [the enhancement].” Id
The court also noted that the parties disagreed as to what constituted a “deductible expense” and as to what should be viewed more properly as a distribution of profits. Id. For example, the government argued that gross income should be used, but that if net income were used, only the amount Gordon had paid to acquire the cocaine base he sold could be netted out against his gross earnings. Id. Gordon, in contrast, argued that the court should also deduct compensation he had purportedly paid subordinate dealers to move product on his behalf, as well as the cost of two televisions and a futon that he had purportedly purchased for an associate in exchange for allowing Gordon to store cocaine base at the associate’s apartment. Id. at *2-3.
The court also pointed out that it is the government’s burden to prove the application of a sentencing enhancement, United States v. Alphas, 785 F.3d 775, 784 (1st Cir. 2015), but that the government will “frequently have little evidence to offer” regarding the precise, idiosyncratic and potentially numerous expenses attendant to a criminal enterprise, “especially when those expenses are cash payments or cash purchases made with drug proceeds,” Gordon, 2017 WL 383349, at *3. “Thus,” the court concluded, “assuming [a district court] were required to make a net income finding ..., it is not clear who [would] bear the burden of production for any deductible amounts.” Id.
[130]*130Finally, the court held that even if it had not applied the criminal livelihood enhancement, and Gordon’s GSR had been 151- to 188 months as a result,, the court still would have varied downward and imposed the same 132-month sentence on Gordon. Id.
On January 30, 2017, Gordon filed a notice of his intent to continue his appeal with this court in light of the district court’s January 27 order. In his supplemental appellate brief, filed on February 17, 2017, Gordon renewed his claim that the district court had erred, as a matter of law, in calculating his derived income on a gross, rather than net, basis for purposes of the criminal livelihood enhancement. Of the other claims raised in Gordon’s original appellate brief, which all pertained to purported factual errors underlying the court’s application of the same enhancement, only Gordon’s claim that the court had erred by finding that drug trafficking, rather than barbering, was his primary occupation during the relevant time period remains a live issue in this appeal.3
II.
A. Appeal from the District Court’s Use of the Gross-Income Approach Under U.S.S.G. § 4B1.3 app. n.2(A)
Gordon appeals from the district court’s thoughtful holding that it was proper to apply § 4B1.3 app. n.2(A) of the Guidelines based on evidence of Gordon’s gross income alone. Gordon argues that this was error, alleging that § 4B1.3 app. n.2(A) required the court to consider his net income.4 The government denies that this was error but says that, if any error occurred, it was harmless in light of the district court’s statement that it would have imposed the same 132-month sentence regardless of whether the criminal livelihood enhancement applied. See Gordon, 2017 WL 383349, at *3.
We address first the question of whether there was any error at all in the district court’s use of the gross-income approach, a recurring and logically antecedent question. Then we turn to the government’s argument that, if there was any error, that error was harmless. For the reasons that follow, we hold that there was no error.
The proper interpretation of a sentencing guideline is a question of law that we review de novo. United States v. Damon, 595 F.3d 395, 399 (1st Cir. 2010). We interpret a guideline “by applying familiar principles of statutory construction,” id. at 400, meaning we look to “its text, structure, context, and purpose[],” id. at 401.
The guideline at issue provides that a court applying the criminal livelihood en[131]*131hancement must find that, in any twelvemonth period, the defendant “derived income” from his criminal acts in excess of 2,000 times the then existing hourly minimum wage under federal law. U.S.S.G. § 4B1.3 app. n.2(A). The plain meaning of “income” does not resolve the question of whether a defendant’s earnings should be measured on a gross or net basis, as the term is susceptible to both readings. Compare Income, Black’s Law Dictionary (10th ed. 2014) (defining “income” as “[t]he money ... that one receives”), with Income, Merriam-Webster’s Collegiate Dictionary (10th ed. 1993) (defining “income” as the money that one “gain[s]”).
However, looking at the text of the guideline as a whole, we find a sufficient basis for the district court’s decision to rely exclusively on evidence of Gordon’s gross income in applying § 4B1.3 app. n.2(A). By its terms, the guideline’s income threshold is designed to approximate the annual income of an employee earning the federal minimum wage, which is a gross figure.5 See id. It is reasonable to infer from this deliberate linking of the income threshold to a specific level of gross income that the guideline intends for a defendant’s income to be measured on a gross basis.
That interpretation is reinforced by the lack of discussion in the guideline of issues that would be key if courts were required to use a net-income approach.
First, the guideline does not discuss how net income should be measured. As the district court observed, § 4B1.3 app. n.2(A) can be applied to a wide range of offenses, and the types of “expenses” potentially associated with committing those offenses can vary greatly based on the particular circumstances of a given case and the level of generality at which expenses are viewed. See Gordon, 2017 WL 383349, at *2. Yet the guideline provides no information to guide a court in determining, with any degree of consistency and precision, “what qualifies as a deductible expense” for purposes of calculating a defendant’s net income from criminal activity.6 Id Likewise, it provides no guidance as to how a court should treat taxes paid on illegal income or how it should distinguish between a defendant’s expenses and the manner in which he chooses to distribute, spend, or reinvest his profits. See id.
The guideline also makes no mention of how to allocate the burden of proving a defendant’s net income. The burden of establishing the applicability of an enhancement is generally on the government. See Alphas, 785 F.3d at 784. But, like the district court, we doubt that the Sentencing Commission intended to put on the government the burden of providing evidence of a defendant’s expenses, which the government would often be unable to access. See Gordon, 2017 WL 383349, at *3. [132]*132Given that the purpose of “the Sentencing Guidelines [is] to provide ‘a framework ... to guide the exercise of the court’s discretion,’ which ‘promotes uniformity and fairness in sentencing,’ ” United States v. Hurley, 842 F.3d 170, 174 .(1st Cir. 2016) (quoting United States v. Marchena-Silvestre, 802 F.3d 196, 200 (1st Cir. 2015)), this lack of guidance indicates that the Commission did not intend for § 4B1.3 app. n.2(A) to mandate the type of net-income accounting that Gordon envisions.
We hold that absent greater clarity in the Guidelines — which we urge the Commission to provide — the district court permissibly considered only Gordon’s gross income from drug trafficking in applying § 4B1.3 app. n.2(A). This holding is consistent with opinions from several other circuits. See, e.g., United States v. Cryer, 925 F.2d 828, 830 (5th Cir. 1991); United States v. Quertermous, 946 F.2d 375, 378 (5th Cir. 1991); United States v. Reed, 951 F.2d 97, 101-02 (6th Cir. 1991); United States v. Morse, 983 F.2d 851, 853 (8th Cir. 1993); United States v. Kellams, 26 F.3d 646, 647, 649 (6th Cir. 1994); United States v. Nastri, 647 Fed.Appx. 51, 54 (2d Cir.) (unpublished opinion), cert. denied, - U.S. -, 137 S.Ct. 232, 196 L.Ed.2d 179 (2016). While none of those courts were presented with the precise argument that the term “income” in § 4B1.3 app. n.2(A) requires a finding as to net income, they each affirmed the application of that guideline based on evidence of gross income alone. And against the backdrop of this apparent majority approach, the Commission amended § 4B1.3 in 2010 without modifying the term “income” or altering the operative language of the provision in any way, see U.S.S.G. Manual app. C, amend. 747 (2010), an issue we discuss further below.
The only circuit case to have decided that the criminal livelihood enhancement requires a court to calculate a defendant’s net income dealt with a materially different version of § 4B1.3, in effect between 1987 and 1989, which at that time required a court to find that a defendant “derived a substantial portion of his income” from criminal activity. See Lee v. United States, 939 F.2d 503, 504 (7th Cir. 1991).7 The court reasoned that a sentencing court applying that guideline needed to consider a defendant’s criminal profits because it would be “absurd” to say that an individual who “earn[ed] $20,000 in his lawful ‘day job’ and net[ted] $10,000 on thefts of $1 million [in merchandise]” had engaged in [133]*133crime as a livelihood.8 Id.
But Lee does not help Gordon. The guideline at issue in that case has been significantly amended, and the version applicable here includes two prongs: A court must first find that the defendant derived income from criminal activity in excess of a specified sum (equal to $14,500 at present), U.S.S.G. § 4B1.3 app. n.2(A), and then separately find that the criminal activity was the defendant’s primary occupation, id. § 4B1.3 app. n.2(B).
The proper way of measuring the relative predominance of a defendant’s criminal and legitimate income — the issue on which Lee ruled — has no bearing on the prong-one question of whether the defendant’s criminal income exceeded the $14,500 threshold, the question at issue here. It is relevant, if at all, only to the prong-two question of whether criminal activity was the defendant’s primary occupation.9 Cf. United States v. Luster, 889 F.2d 1523, 1529 (6th Cir. 1989) (“A determination of whether a pattern of criminal activity provides ‘a substantial portion’ of one’s income is a means of determining whether or not criminal conduct is one’s primary occupation.”); Kellams, 26 F.3d at 649. Moreover, commentary on the reason why § 4B1.3 was amended in 1989 to include two prongs supports our reading of the guideline. See Fed. Sent’g L. & Prac. § 4B1.3 cmt. n.5 (explaining that the amendment intended to “simpliffy]” the analysis of a defendant’s income).
It is also telling that the Commission amended § 4B1.3 again in 2010, when, as we have noted, the majority approach to the “income” issue was the gross-income approach. At that time, the Commission chose to leave the term “income,” and therefore the precedents we cite, entirely undisturbed. See U.S.S.G. Manual app. C, amend. 747 (2010) (explaining that the Commission made merely cosmetic changes to the guideline in 2010 such as, inter alia, “striking ‘(1)’ and inserting ‘(A)’; [ ] striking ‘(2)’ and inserting ‘(B)’; and [ ] striking ‘his’ and inserting ‘the defendant’s’”). This amendment further supports our reading, and at a minimum, there is certainly no reason to view it as having adopted Lee, which addressed a meaningfully different version of the guideline.
Finally, the cases cited by Gordon that interpret the term “loss” in § 2B1.1 and the now-defunct § 2F1.1 as requiring a court to consider a crime victim’s net losses do not bear on the meaning of the term “income” in § 4B1.3 app. n.2(A). See Unit[134]*134ed States v. Schneider, 930 F.2d 555, 558 (7th Cir. 1991); United States v. Smith, 951 F.2d 1164, 1167-69 (10th Cir. 1991); United States v. Moore, 55 F.3d 1500, 1502-03 (10th Cir. 1995). Nothing in the text or history of § 4B1.3 suggests that the magnitude of the harm caused by a defendant’s criminal activity is in any way related to the question of whether he engaged in that activity as a livelihood. And no authority supports the proposition that the meaning of a term in a guideline controls the definition of a different term in an unrelated guideline.
We find no error in the district court’s interpretation of § 4B1.3 app. n.2(A), absent further clarification by the Commission. Even if we are wrong in reaching that conclusion, we affirm anyway, as the government’s harmless error argument is correct. See, e.g., United States v. Tavares, 705 F.3d 4, 27-28 (1st Cir. 2013).
B. Appeal from the District Court’s Finding as to Gordon’s Primary Occupation Under U.S.S.G. § 4B1.3 app. n.2(B)
We review a district court’s application of a sentencing guideline to the facts before it only for clear error. United States v. Martin, 749 F.3d 87, 92 (1st Cir. 2014). “[A] sentencing enhancement must be supported by a preponderance of the evidence.” United States v. Burgos-Figueroa, 778 F.3d 319, 320 (1st Cir. 2015) (citation omitted). Gordon’s claim that the court erred in finding that drug trafficking, rather than some legitimate endeavor, was his “primary occupation [during the relevant] twelve-month period,” U.S.S.G. § 4B1.3 app. n.2(B), easily fails on this record.
The uncontested evidence presented by the government established that Gordon held a leadership role in a substantial drug-trafficking organization while living in Maine during the year preceding his arrest. The operation was sufficiently large to sell $89,480 in cocaine base over twelve months. Gordon actively participated in it, regularly communicating with his co-conspirators about the scheme and frequently executing transactions in furtherance of it. Additionally, in statements introduced by the government, an associate of Gordon’s recounted that Gordon had told the associate that Gordon had come to Maine specifically to make money selling drugs in order to support himself and family members still living in Detroit, Michigan. See Quertermous, 946 F.2d at 378 (holding that an investigator’s testimony that the defendant had admitted that he had resorted to a criminal activity in order to provide for himself, along with testimony regarding a co-defendant’s statement that the defendant “was making his living from” that activity, supported the conclusion that the defendant’s “primary occupation” was that activity).
In rebuttal, Gordon offered little more than his own attestations to support his contention that he had worked primarily as a self-employed barber. Gordon claimed that he had made between $200 and $600 per week cutting hair, but he conceded that he had no documentation of any sort to verify either that work or those earnings. See, e.g., Luster, 889 F.2d at 1531 (rejecting a defendant’s claim of legitimate employment at various part-time jobs because he was unable to provide supporting documentation); Quertermous, 946 F.2d at 378 (same, where the defendant claimed he had been legitimately “self-employed as a roofer” but was “unable to provide any records of employment”).
The only evidence of legitimate employment that Gordon could muster were statements taken from a few of the letters submitted to the court in support of Gordon’s character, which mentioned that Gor[135]*135don had engaged in barbering at some point, sometimes for money, back when he had lived in Detroit. These statements did not indicate that Gordon had worked as a barber at all, let alone primarily, during the relevant time period. Meanwhile, an associate of Gordon’s who had hosted Gordon at her residence in Maine overnight “from time to time” stated that she did hot know what, if anything, he had done for legitimate work there.
In light of the abundant evidence that Gordon had actively participated in large-scale, lucrative drug-trafficking activities during the twelve months at issue and the dearth of evidence that he had performed any alternative work of comparable frequency or profitability over that period, the district court was well justified in concluding that the primary-occupation prong of the criminal livelihood enhancement was satisfied. See Nastri, 647 Fed.Appx. at 64 (affirming the district court’s conclusion that the primary-occupation prong was satisfied where the evidence showed that the defendant had received “between $4,000 and $5,000” in proceeds from drug sales “five to seven times” and “no facts before the ... court [showed] that [he had] held a primary occupation or employment other than his criminal drug enterprise”). There was no error on these facts.
III.
Gordon’s sentence is affirmed. We direct the Clerk to send a copy of this opinion to the Sentencing Commission.