! 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 March 1 March 5 Beginning inventory Purchase March 9 Sales March 18 March 25 March 29 Purchase Purchase Sales Units Acquired at Cost 90 units @ $50.80 per unit 220 units @ $55.80 per unit 80 units @ $60.80 per unit 140 units @ $62.80 per unit Units Sold at Retail 250 units $85.80 per unit 120 units @ $95.80 per unit Totals 530 units 370 units 4. Compute gross profit earned by the company for each of the four costing methods. For specific identification, units sold include 60 units from beginning inventory, 190 units from the March 5 purchase, 40 units from the March 18 purchase, and 80 units from the March 25 purchase. (Round weighted average cost per unit to two decimals and final answers to nearest whole dollar.)