43 Warnerwoods Company uses a periodic inventory system. It entered into the following purchases and sales transactions for March. Date: Unite Sold at Retail Activities Units Acquired at Cost Part 4 of 4 March 1 March 5 Beginning inventory Purchase 135 units $70 per unit 435 units March 9 Sales March 18 March 25 ints - March 29 Purchase Purchase Sales 190 units 270 units $75 per unit 580 per unit $82 per unit 455 units $105 per unit Totals 1,030 units 230 units $115 per unit 685 units eBook Print eferences For specific identification, units sold include 80 units from beginning inventory, 375 units from the March 5 purchase, 75 units from the March 18 purchase, and 155 units from the March 25 purchase. 4. Compute gross profit earned by the company for each of the four costing methods. (Round your average cost per unit to 2 decimal places and final answers to nearest whole dollar.) Sales Less: Cost of goods sold Gross profit FIFO LIFO Weighted Average Specific Identification