definiens: shall mean, with respect to any period, the actual gross amoWlts invoiced by [COMPANY] or its Affiliates on all sales of the Generic Product in the Territory during such period, less deductions actually allowed for by [COMPANY] : ( a ) ( sales and excise taxes, value added taxes, and duties which fall due and are paid by the purchaser as a direct consequence of such sales and any other g~)Vernmental cl1arges imposed upon the importation, use or sale of the Generic Product, but only to the extent that such taxes and duties are ( i ) actually included and itemized in the gross amounts invoiced to and specifically paid by the purchaser over and above the usual selling price of the Generic Product, ( ii ) customarily included and itemized in the gross amounts invoiced to and specifically U Confidential Treatment Requested 4 paid by the purchaser over and above the usual selling price of all comparable products in the relevant market and ( iii ) are not recovered or recoverable ;