Warnerwoods Company uses a perpetual inventory system. it entered into the following purchases and sales vansactions for March. 4. Compute gross profit eamed by the company for each of the four costing methods. For specific identification, units soid include 50 units from beginning inventory, 180 units from the March 5 purchase, 30 units from the March 18 purchase, ond 70 units fiom the March 25 purchase. Notel Round weighted average cost per unit to two decimals and final answers to nearest whole dollar