Susan's Boards sells a snowboard, Xpert, that is popular with snowboard enthusiasts. Information relating to Susan's purchases of Xpert snowboards during September is shown below. During the same month, 122 Xpert snowboards were sold. Susan's uses a periodic inventory system Date Explanation Units Unit Cost Total Cost Sept. 1 Inventory 26 $97 $ 2,522 Sept. 12 Purchases 45 105 4.725 Sept. 19 Purchases 20 107 2.140 Sept. 26 Purchases 50 108 5,400 Totals 141 $14.787 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 $