Current Attempt in Progress 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. Your answer is correct. Compute the ending inventory at September 30 and cost of goods sold using the FIFO and LIFO methods. For both FIFO and LIFO, calculate the sum of ending inventory and cost of goods sold