Assume that Bob's Toys store bought and sold a line of computer games during December as follows: Dec. 1 6 9 21 Beginning Inventory Sale Purchase Sale 14 units @ $48 eackh 11 units @ $115 each 8 units@$ 52 each 9 units@$ 120 each REQUIREMENTS Compute the cost of goods sold, sales revenue, gross profit and ending inventory using the FIFO inventory costing method