definiens: shall mean the gross amount originally invoiced representing all sales of Products for sold by [COMPANY] Mexico or its Subdistributors to third parties throughout Mexico during each calendar quarter, less the following amounts paid by [COMPANY] Mexico or its Subdistributors during such calendar quarter with respect to sales of Products regardless of tlie calendar quarter in which such sales were made : a ) reasonable transportation and insurance charges directly related to the sale of the Product to the third party in Mexico ; and'-b ) sales and other taxes and duties ( including value added taxes ) directly related to the sale of Product to a third party by [COMPANY] Mexico ; c ) credits or allowances actually given or made for rejection of, and for uncollectible amounts on, or return of previously sold Products ; and d ) distributor incentives ( i.e., special bonifications ) or cash discounts, actually granted, allowed or incurred in the ordinary course of business directly related to the sale of the Product to a third party in Mexico