Required information [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. Date March 1 March 5 Activities Beginning inventory Purchase Units Acquired at Cost Units Sold at Retail 150 units $40 per unit 450 units $45 per unit March 9 Sales 470 units $75 per unit March 18 Purchase March 25 March 29 Purchase Sales Totals: 220 units 300 units 1,120 units $50 per unit $52 per unit 260 units $85 per unit 730 units For specific identification, units sold include 40 units from beginning inventory, 430 units from the March 5 purchase, 90 units from the March 18 purchase, and 170 units from the March 25 purchase 4. Compute gross profit earned by the company for each of the four costing methods. (Round your average co per unit to 2 decimal places and final answers to nearest whole dollar.) FIFO LIFO Weighted Specific Average Identification Sales Less: Cost of goods sold Gross profit $ 05 0 $ 0 $ 0