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 Activities Units Acquired at Cost Units sold at Retail March 1 Beginning inventory 100 units @ $50 per unit March 5 Purchase 400 units @ $55 per unit March 9 Sales 420 units @ $85 per unit March 18 Purchase 120 units $60 per unit March 25 Purchase 200 units @ $62 per unit March 29 Sales 160 units $95 per unit Totals 820 units 588 units 4. Compute gross profit earned by the company for each of the four costing methods. For specific identification, units sold include 80 units from beginning inventory, 340 units from the March 5 purchase, 40 units from the March 18 purchase, and 120 units from the March 25 purchase. (Round weighted average cost per unit to 2 decimal places.) FIFO LIFO Woighted Averag Gross Margin Specific ID Sales cee Cast of ooods sold 4. Compute gross profit earned by the company for each of the four costing methods. For specific identification, units sold include 80 units from beginning inventory, 340 units from the March 5 purchase, 40 units from the March 18 purchase, and 120 units from the March 25 purchase. (Round weighted average cost per unit to 2 decimal places.) 20 FIFO LIFO Weighted Average Specific ID Gross Margin Sales Less: Cost of goods sold Gross profit tos