definiens: shall mean gross sales revenues and fees billed by Company, AFFILIATED COMPANIESand SUBLICENSEES from the sale of LICENSED PRODUCTS less trade discounts or rebates allowed ; refunds, returns and recalls ; and sales, use, tariff, import / export duties, or other excise taxes invoiced to and/or paid by thepurchaser of the such LICENSED PRODUCT . NET SALES of a COMBINATION PRODUCT sold by Company, itsSUBLICENSEE(S ) and/or its AFFILIATED COMPANIES shall be calculated by multiplying the NET SALES of theCOMBINATION PRODUCT by the fraction A / A+B, where A is the number of all LICENSED PRODUCTS in theCOMBINATION PRODUCT, and B is the number of all other therapeutically active components which are notLICENSED PRODUCTS in the COMBINATION PRODUCT