definiens: shall mean the gross amounts invoiced by Aratana and its Affiliates ( but not sublicensees)for sales of Products to third parties, including without limitation distributors, less the following items, to the extentallocable to such Product ( if not previously deducted from the amount invoiced ): ( a ) reasonable and customary trade, quantity and cash discounts actually paid, granted or accrued ; ( b ) rebates and retroactive price reductions orallowances actually paid, granted or accrued ; ( c ) credits or allowances actually granted upon claims, rejections orreturns of Product ; ( d ) taxes, duties and other governmental charges imposed on the production, sale, delivery, use orimportation of Product ( including, without limitation, sales, use, excise or value added taxes, but excluding taxesbased on income ) ; ( e ) transportation charges relating to such Product, including handling charges and insurancepremiums relating thereto, and ( f ) the actual amount of any write - offs for bad debt directly relating to sales of Product, taken in accordance with U.S. GAAP, consistently applied