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 Totals 50 108 5,400 141 $14,787 (a) Your Answer Correct Answer (Used) Compute the ending inventory at September 30 and cost of goods sold using the FIFO and LIFO methods. (b) The ending inventory at September 30 $ Cost of goods sold FIFO 2,052 $ LIFO 1,843 $ 12,735 $ 12,944 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