D 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 Units Acquired at Cost Units Sold at Retail Date March 1 March 5 Activities Beginning inventory Purchase 130 units $51.60 per unit 240 units $56.60 per unit March 9 Sales 290 units $86.60 per unit March 18 March 25 March 29 Purchase Purchase Sales 100 units @ $61.60 per unit 100 units $63.60 per unit Totals 650 units 160 units @ $96.60 per unit 450 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, 210 units from the March 5 purchase, 60 units from the March 18 purchase, and 100 units from the March 25 purchase. (Round weighted average cost per unit to two decimals and final answers to nearest whole dollar.) Gross Margin FIFO Weighted LIFO Specific ID Average Sales Less Cost of goods sold Gross profit