(a) Your answer is partially correct. 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 $ 2.520 2328 Cost of goods sold 12.213 $ 8.3344 e Textbook and Media Save for Later Attempts: 1 of 3 used Submit Answer (b) Michelle's Boards sells a snowboard, Xpert that is popular with snowboard enthusiasts. Information relating to Michelle's purchases of Xpert snowboards during September is shown below. During the same month, 120 Xpert snowboards were sold. Michelle's uses a periodic inventory system Date Explanation Units Unit Cost Total Cost $ 2,813 Sept 1 Inventory 29 $97 Sept 12 Purchases 45 102 4,590 Sept. 19 Purchases 20 104 2.080 Sept. 26 Purchases 50 105 5.250 Totals 144 $14.733