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Required information Problem 6-2AA (Algo) Periodic: Alternative cost flows LO P3 [The following information applies 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 40 units from beginning inventory, 400 units from the March 5 purchase, 60 units from the March 18 purchase, and 140 units from the March 25 purchase. Problem 6-2AA (Algo) Part 4 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