Required information [The following information applles to the questions displayed below.] Warnerwoods Company uses a periodic Inventory system. It entered Into the following purchases and sales transactions for March. For specific Identification, units sold Include 70 units from beginning Inventory, 450 units from the March 5 purchase, 140 units from the March 18 purchase, and 220 unlts from the March 25 purchase. 4. Compute gross profit earned by the company for each of the four costing methods. Note: Round your average cost per unit to 2 decimal places and final answers to nearest whole dollar