Coronado sells a snowboard, WhiteOut, that is popular with snowboard enthusiasts. Presented below is information relating to Coronado's purchases of WhiteOut snowboards during September. During the same month, 116 WhiteOut snowboards were sold at $169 each. Coronado uses a periodic inventory system. (a) Your answer is incorrect. Compute the ending inventory at September 30 and cost of goods sold using the FIFO and LIFO methods