Required information Problem 6-1A (Static) Perpetual: Alternative cost flows LO P1 [The following information applies to the questions displayed below.] Wamerwoods Company uses a perpetual inventory system. It entered into the following purchases and sales transactions for March. 4. Compute gross proft earned by the company for each of the four costing methods. For specific identification, units sold inciude Bo units from beginning inventory. 340 units from the March 5 purchase, 40 units from the March 18 purchase, and 120 units from the March 25 purchase. (Round weighted overage cost pert unit to 2 decimal places)