Required information Problem 6-2AA 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 Units Sold at Retail Units Acquired at Cost 135 units @ $70 per unit 435 units @ $75 per unit Date Activities Mar. 1 Beginning inventory Mar. 5 Purchase Mar. 9 Sales Mar. 18 Purchase 25 Purchase Mar. 29 Sales 455 units @ $105 per unit Mar. 190 units @ $80 per unit 270 units @ $82 per unit 230 units @ $115 per unit 685 units Totals 1,030 units For specific identification, the March 9 sale consisted of 80 units from beginning inventory and 375 units from the March 5 purchase; the March 29 sale consisted of 75 units from the March 18 purchase and 155 units from the March 25 purchase. Problem 6-2AA Part 4 4. Compute gross profit earned by the company for each of the four costing methods. (Round your average cost per unit to 2 decimal places and final answers to nearest whole dollar.) FIFO LIFO Weighted Average Specific Identification Sales Less: Cost of goods sold Gross profit