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Requlred Information [The following information applies to the questions displayed below.] Warnerwoods Company uses a perpetual inventory system. It entered into the following purchases and sales transactions for March. 4. Compute gross profit earned by the company for each of the four costing methods. For specific identification, units sold include 105 units from beginning inventory, 235 units from the March 5 purchase, 85 units from the March 18 purchase, and 125 units from the March 25 purchase. Note: Round welghted overage cost per unit to two declmals and final onswers to nearest whole doller