The business maintains a perpetual inventory system, 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. First-in, First-out Method DVD Players Quantity Purchased Purchases Purchases Unit Cost Total Cost Quantity Sold Cost of Goods Sold Unit Cost Cost of Goods Sold Total Cost Inventory Inventory Quantity Unit Cost Inventory Total Cost Date Nov. 1 41 55 2,255 Nov. 10 28 55 1,540 13 55 715 Nov. 15 19 58 1,102 55 715 58 X Nov. 20 55 12 58 696 Nov. 24 6 Nov. 30 23 60 1,380 Nov. 30 Balances 6 58 58 xx