Required information Problem 5-2AA 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 200 units @ $90 per unit 500 units @ $95 per unit 520 units @ $125 per unit Date Activities Mar. 1 Beginning inventory Mar. 5 Purchase Mar. 9 Sales Mar. 18 Purchase Mar. 25 Purchase Mar. 29 Sales Totals 320 units @ $100 per unit 400 units @ $102 per unit 360 units @ $135 per unit 880 units 1,420 units For specific identification, the March 9 sale consisted of 70 units from beginning inventory and 450 units from the March 5 purchase, the March 29 sale consisted of 140 units from the March 18 purchase and 220 units from the March 25 purchase. Problem 5-2AA 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 $ 0 $ 0 $ 0 $ 0