Perpetual Inventory Using FIFO Beginning inventory, purchases, and sales data for DVD players are as follows: 10 15 November 1 Inventory 79 units at $78 Sale 64 units Purchase 47 units at $82 20 Sale 21 units Sale 30 units 30 Purchase 29 units at $87 The business maintains a perpetual inventory system, costing by the first-in, first-out method. 24 a. Determine the cost of the goods sold for each sale and the inventory balance after each sale, presenting the data i the form illustrated in Exhibit 3. Under FIFO, If units are in inventory at two different costs, enter the units with the