Karen's Boards sells a snowboard, Xpert, that is popular with snowboard enthusiasts. Information relating to Karen's purchases of Xpert snowboards during September is shown below. During the same month, 123 Xpert snowboards were sold. Karen's uses a periodic inventory system. Date Explanation Units Unit Cost Total Cost Sept. 1 Inventory 29 $97 $2,813 Sept. 12 Purchases 45 104 4,680 Sept. 19 Purchases 20 106 2,120 Sept. 26 Purchases 50 107 5,350 Totals 144 $14,963 Compute the ending inventory at September 30 and cost of goods sold using the FIFO and LIFO methods. FIFO The ending inventory at September 30 $ Cost of goods sold eTextbook and Media For both FIFO and LIFO, calculate the sum of ending inventory and cost of goods sold. The sum of ending inventory and cost of goods sold FIFO LIFO LIFO