! 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 Purchase Purchase Units Acquired at Cost 160 units @ $52.20 per unit 255 units @ $57.20 per unit 115 units @ $62.20 per unit 210 units @ $64.20 per unit Units Sold at Retail 320 units @ $87.20 per unit March 29 Sales Totals 740 units 190 units @ $97.20 per unit 510 units 4. Compute gross profit earned by the company for each of the four costing methods. For specific identification, units sold include 95 units from beginning inventory, 225 units from the March 5 purchase, 75 units from the March 18 purchase, and 115 units from the March 25 purchase. Note: Round weighted average cost per unit to two decimals and final answers to nearest whole dollar.