Exercise 6-4 Linda's Boards sells a snowboard, Xpert, that is popular with snowboard enthusiasts. Information relating to Linda's purchases of Xpert snowboards during September is shown below. During the same month, 163 Xpert snowboards were sold. Linda's uses a periodic inventory system DateExplation Units Unit Cost Total Cost Sept. 1 Sept. 12 Purchases Sept. 19 Purchases Sept. 26 Purchases 35 61 27 68 191 $100 103 106 112 3,500 6,283 2,862 7,616 $20,261 Inventory Totals Compute the ending inventory at September 30 and cost of goods sold using the FIFO and LIFO methods FIFO LIFO The ending inventory at September 30 Cost of goods sold For both FIFO and LIFO, calculate the sum of ending inventory and cost of goods sold FIFO LIFO The sum of ending inventory and cost of goods sold