! 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 March 5 March 9 March 18 March 25 March 29 Activities Units Acquired at Cost Units Sold at Retail Beginning inventory Purchase 140 units $51.80 per unit 245 units $56.80 per unit Sales 300 units $86.80 per unit Purchase Purchase Sales 105 units 190 units $61.80 per unit $63.80 per unit Totals 680 units 170 units $96.80 per unit 470 units 4. Compute gross profit earned by the company for each of the four costing methods. For specific identification, units sold include 85 units from beginning inventory, 215 units from the March 5 purchase, 65 units from the March 18 purchase, and 105 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