Wildhorse's Boards sells a snowboard, Xpert, that is popular with snowboard enthusiasts. Information relating to Wildhorse's purchases of Xpert snowboards during September is shown below. During the same month, 321 Xpert snowboards were sold. Wildhorse's uses a periodic inventory system. Date Sept. 1 Sept. 12 Sept. 19 Sept. 26 Explanation Inventory Purchases Purchases Purchases Totals Units Unit Cost Total Cost 69 $100 $ 6,900 119 104 12,376 53 108 5.724 133 110 14.630 374 $39,630 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 moada cold