SUMMARY ORDER

Mark Colon and Santos Crespo-Ayuso appeal their sentences, entered in the United States District Court for the South *62 ern District of New York (McMahon, J.), following pleas of guilty to conspiracy to distribute cocaine and crack cocaine, and (for Colon) distribution of cocaine. On May 24, 2011, the district court sentenced Colon to 210 months’ imprisonment (at the low end of the Guidelines range) and imposed an order of forfeiture totaling $1,750,000. On October 21, 2011, the district court sentenced Crespo-Ayuso to 135 months’ imprisonment — also a low-end Guidelines sentence — and likewise imposed an order of forfeiture totaling $1,750,000. We assume the parties’ familiarity with the underlying facts, the procedural history, and the issues presented for review.

Appellate review of a district court’s sentence “encompasses two components: procedural review and substantive review.” United States v. Cavera, 550 F.3d 180, 189 (2d Cir. 2008) (in banc). An appellate court “must first ensure that the district court committed no significant procedural error, such as failing to calculate (or improperly calculating) the Guidelines range, treating the Guidelines as mandatory, failing to consider the Section 3553(a) factors, selecting a sentence based on clearly erroneous facts, or failing to adequately explain the chosen sentence — including an explanation for any deviation from the Guidelines range.” Gall v. United States, 552 U.S. 38, 51, 128 S.Ct. 586, 169 L.Ed.2d 445 (2007). If the Court determines that there was no procedural error, it “should then consider the substantive reasonableness of the sentence imposed under an abuse-of-discretion standard.” Id. at 51, 128 S.Ct. 586. “In general, we review a district court’s determination that a defendant deserves a leadership enhancement under § 3B1.1 de novo, but we review the court’s findings of fact supporting its conclusion only for clear error.” United States v. Hertular, 562 F.3d 433, 449 (2d Cir. 2009).

Colon argues, first, that the district court erred in determining that he conspired to sell more than fifty kilograms of cocaine. In particular, he attacks the credibility of Maudo Francisco Guiti-Lopez, a co-defendant who testified against him at a Fatico hearing. See United States v. Fatico, 458 F.Supp. 388 (E.D.N.Y. 1978), aff'd 603 F.2d 1053 (2d Cir. 1979). Colon identifies several alleged inaccuracies in Guiti-Lopez’s testimony, but none suggests that Guiti-Lopez perjured himself. Moreover, such credibility determinations are best left to the sound discretion of the district courts. See United States v. Jones, 531 F.3d 163, 171 (2d Cir. 2008) (“[District courts hear all the evidence relevant to sentencing, make credibility determinations, and interact directly with the defendant. In the process, they ‘gain[ j insights not conveyed by the record’ that are often critical to identifying a just sentence.”) (quoting Gall, 552 U.S. at 51, 128 S.Ct. 586) (internal citations omitted). Colon also offers these examples to argue that the district court improperly relied on Guiti-Lopez’s testimony to impose a leadership enhancement under the Sentencing Guidelines, see U.S.S.G. § 3Bl.l(a), but this argument fails for the same reasons. Additionally, there was sufficient corroborative evidence, e.g., wiretap recordings and testimony from other cooperating witnesses, upon which the district court could base this determination.

Both Colon and Crespo-Ayuso assert that the district court failed to consider the § 3553 factors in arriving at their respective sentences, see 18 U.S.C. § 3553(a), but the record is plainly to the contrary.

Both Appellants also contend that the forfeiture orders imposed by Judge McMahon were excessive because they included gross proceeds of the offense rather than gross profits. They argue that their ex *63 penses (approximately $29,000 per kilogram of cocaine) should be subtracted from the sale price (approximately $35,000 per kilogram), thereby reducing the forfeiture order from $1.75 million to $300,000. Under 21 U.S.C. § 853(a), courts “shall order, in addition to any other sentence imposed ... that the person forfeit to the United States all property described in this subsection” including “any property constituting, or derived from, any proceeds the person obtained, directly or indirectly, as the result of such violation.” We previously calculated forfeiture amounts based on gross sales in the context of food stamp fraud. See United States v. Uddin, 551 F.3d 176, 181 (2d Cir. 2009). We also upheld the use of this method of calculation in other drug trafficking cases, see, e.g., United States v. Roberts, 660 F.3d 149, 165-66 (2d Cir. 2011), as have our sister Circuits. 1 Colon and Crespo-Ayuso offer no compelling reason to abandon this approach here.

For the foregoing reasons, and finding no merit in Appellants’ other arguments, we hereby AFFIRM the judgments of the district court.