Beginning inventory, purchases, and sales cata for portable game players are as follows: The business maintains a perpetuat inventory system, costing by the firstin, first-out methsd. a. Determine the cost of the merchandise sold for each sale and the inventory balance atter each iale, presenting the data in the form thustratod in Exhoit 3 . Under FiFo, if units are in inventory at two diferent costs, enter the units with the LOWER unit cost fost in the Cost of Merchandise Sold Unit Cost column and in the Invertery Unit Cast column