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 Mar. 1 Beginning inventory 220 units @ $53.40 per unit Mar. 5 Purchase 285 units@ $58.40 per unit Mar. 9 Sales 380 units@ $88.40 per unit Mar. 18 Purchase 145 units@ $63.40 per unit Mar. 25 Purchase 270 units@ $65.40 per unit Mar. 29 Sales 250 units@ $98.40 per unit Totals 920 units 630 units 4. Compute gross profit earned by the company for each of the four costing methods. For specific identification, the March 9 sale consisted of 125 units from beginning inventory and 255 units from the March 5 purchase, the March 29 sale consisted of 105 units from the March 18 purchase and 145 units from the March 25 purchase. (Round weighted average cost per unit to two decimals and final answers to nearest whole dollar.) FIFO LIFO Avg. Cost Spec.ID Gross Margin Sales Less: Cost of goods sold Gross profit