Beginning inventory, purchases, and sales data for DVD plsyers are as follows: The business maintains a perpetuat inventory systern, costing by the first-in, first-out method. a. Determine the cost of goods sold for each sale and the inventory balance after each sale, presenting the data in the form illustrated in Exhibit 3 . Under FifO, if units are in inventory at two different costs, enter the units with the LOWER unit cost first in the Cost of Goods Sold Unit Cost column and in the Inventory Unit Cost column. b. Based upon the preceding data, Hould you expect the inventory to be higher or lower using the last-in, first-out method