! Required information [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. Date March 1 Activities March 5 Beginning inventory Purchase March 9 Sales March 18 Purchase March 25 March 29 Purchase Sales Totals Units Acquired at Cost 70 units @ $50.40 per unit 210 units @ $55.40 per unit Units Sold at Retail 230 units @ $85.40 per unit 70 units @ $60.40 per unit 120 units @ $62.40 per unit 470 units 100 units @ $95.40 per unit 330 units 4. Compute gross profit earned by the company for each of the four costing methods. For specific identification, units sold include 50 units from beginning inventory, 180 units from the March 5 purchase, 30 units from the March 18 purchase, and 70 units from the March 25 purchase. (Round weighted average cost per unit to two decimals and final answers to nearest whole dollar.) Gross Margin Sales Less: Cost of goods sold Gross profit FIFO LIFO Weighted Average Specific ID