Beginning Inventory, January 1 Inventory Purchase, January 5 Inventory Purchase, January 17 5 units @ $6.00 cost 10 units @ $8.00 cost 10 units @ $9.00 cost $30 $80 $90 Sales, January 31 18 units @ $25.00 Beginning Inventory, February 1 Inventory Purchase, February 12 Inventory Purchase, February 22 7 units@? 10 units @ $10.00 cost 10 units @ $9.00 cost $100 590 18 units @ $30.00 Sales, February 28 What is the cost of ending inventory at February 28, assuming the FIFO method? $66 O $90 O $72 $81 38