ventory, purchases, and sales data for tennis rackets are as follows: Inventory 20 units @ $16 Purchase 12 units @ $16 Sale 27 units Purchase 11 units @ $22 Sale 11 units he subsidiary inventory ledger assuming the business maintains a perpetual inventory system and computes the cost of merchandise sold and ntory using FIFO. Purchases Cost of Merchandise Sold I Qty. Unit Cost Total Cost Qty. Unit Cost Total Cost Qty. U $ SA $ +A SA $ $ SA SA $ 1111 SA $ SA LA A SA SA SA