Warnerwoods Company uses a perpetual inventory system. It entered into the following purchases and sales transactions for March. Compute the cost assigned to ending inventory using (a) FFO. (b) LIFO. ( c ) weighted average, and ( ( ) specific identification. For pecific identification, units sold include 100 units from beginning inventory, 230 units from the March 5 purchase. 80 units from the larch 18 purchase, and 120 units from the March 25 purchase