Beginning inventory, purchases, and sales data for portable game players are as follows: The business maintains a perpetual inventory system, costing by the first-in, first-out method. a. Determine the cost of the merchandise sold for each sale and the inventory balance after each sale, presenting the data in the form Merchandise Sold Unit Cost column and in the Inventory Unit Cost column. b. Based upon the preceding data, would you expect the ending inventory to be higher or lower using the last-in, first-out method