definiens: means the gross invoiced sales price of all Products sold, leased, licensed or otherwisetransferred by DERMA and its Affiliates and its Designees along with any other amounts and consideration received inconnection therewith, after deduction of the following items, to the extent such items are actually incurred, taken orborne by the seller thereof and do not exceed reasonable and customary amounts in the market in which such saleoccurred : ( a ) trade, cash or quantity discounts or rebates actually taken and documented ; ( b ) credits or allowancesgiven or made for rejection, or approved return of, defective goods actually taken and documented ; ( c ) taxes orgovernment charges, duties or tariffs ( other than an income tax ) levied on the sale, transportation or delivery of aProduct and documented . No costs incurred in the manufacturing, selling, advertising, and distribution of theProducts, including without limitation overhead costs, shall be deducted nor shall any deduction be allowed for anyother uncollectible accounts or allowances