Required information Problem 5-1A Perpetual: Alternative cost flows LO P1 [The following information applies to the questions displayed below.) Warnerwoods Company uses a perpetual inventory system. It entered into the following purchases and sales transactions for March. t Units Sold at Retail Units Acquired at Cost 230 units @ $53.60 per unit 290 units @ $58.60 per unit 390 units@ $88.60 per unit Date Activities Mar. 1 Beginning inventory Mar. 5 Purchase Mar. 9 Sales Mar. 18 Purchase Mar. 25 Purchase Mar. 29 Sales Totals 150 units @ $63.60 per unit 280 units @ $65.60 per unit 260 units @ $98.68 per unit 650 units 950 units Problem 5-1A Part 4 4. Compute gross profit earned by the company for each of the four costing methods. For specific identification, the March 9 sale consisted of 130 units from beginning inventory and 260 units from the March 5 purchase, the March 29 sale consisted of 110 units from the March 18 purchase and 150 units from the March 25 purchase. (Round weighted average cost per unit to two decimals and final answers to nearest whole dollar.) Gross Margin FIFO LIFO Avg. Cost Spec. ID Sales Less: Cost of goods sold Gross profit