definiens: means, with respect to a Royalty Product the gross amounts invoiced by Pu rchaser, Purchaser Affiliates and its licensees for sales of the Royalty Products to Third Parties, less the following deductions : ( a ) cash, trade or quantity discounts, charge -back payments, including administrative fees in connection therewith, and rebates actually granted to customers, wholesalers, insurers, group purchasing organizations and national, state, or local governments ; ( b ) credits, rebates or allowances actually allowed upon prompt payment or on account of claims, damaged goods, rejections or returns, including in connection with recalls, and the actual amount of any write -offs for bad debt ; ( c ) reasonable distributors ’ f ees ; ( d ) freight, postage, shipping, transportation and insurance charges, in each case actually allowed or paid for delivery ; ( e ) taxes ( other than income taxes ), duties, tariffs, mandated contributions or other governmental charges levied on the sale o f such Royalty Product, including VAT, excise taxes ( e.g., manufacturing taxes ), sales taxes and any other governmental charges imposed upon such sales, and any applicable medical device taxes ; and ( f ) any other similar or customary deductions taken in ac cordance with U.S. generally accepted accounting principles