Perpetual Inventory Using Fifo Aeginning inventory, purchases, and sales data for Dvo players are as follows: The business maintains a oerpetuar inventory system, costing by the first-in, first-out method. a. Determine the cost of the goods sold for each sale and the imventory balance after eoch sale, presenting the data in the form atustrated in Exhibit 3 . Under fifo, if units are in inve Imentory Unit Cost eolumn