Perpetual Inventory Using FIFO Beginning inventory, purchases, and sales data for portable game players are as follows: Apr. 1 Inventory 69 units @ $64 10 Sale 47 units 15 Purchase 37 units @ $68 20 Sale 31 units 24 Sale 20 units 30 Purchase 40 units @ $72 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 th FIFO, if units are in inventory at two different costs, enter the units with the LOWER unit cost first in the cost of Merc Unit Cost column