definiens: means the gross invoice price for Product sold by WCH or its Aﬀiliates ( orsublicensees pursuant to Section 2.1.2 ) to a Third Party customer less the reasonable and customary accrual - basis deductions from such gross amounts for : ( i ) normal and customary trade, cash and other discounts, allowances and credits actually allowed and taken directly with respect to sales of Product ; ( ii ) credits orallowances actually granted for damaged goods, returns or rejections of Product ; ( iii ) sales or similar taxes(including duties or other governmental charges levied on, absorbed or otherwise imposed directly on thesales of Product, including, without limitation, value added taxes or other governmental charges otherwisemeasured by the billing amount ) which are included in billing amount ; ( iv ) uncollectible accounts ; ( v ) chargeback payments and rebates granted to managed health care organizations or to federal, state and localgovernments, their agencies and purchasers and reimbursers or to trade customers, including but not limitedto, wholesalers and chain and pharmacy buying groups ; and ( vi ) rebates ( or equivalents thereof ) that aregranted to or charged by national, state, provincial or local governmental authorities . Such amounts shall bedetermined from the books and records of WCH, its Aﬀiliates and their respective sublicensees pursuant toSection 2.1.2 maintained in accordance with U.S. generally accepted accounting principles consistentlyapplied . Sales between or among WCH, its Aﬀiliates and its sublicensees pursuant to Section 2.1.2 shall beexcluded from the computation of Net Sales if such Aﬀiliates or sublicensees are not end - users, but Net Salesshall include the subsequent ﬁnal sales to Third Parties by any such Aﬀiliates or sublicensees