REl sells snowboards. Assume the following information relates to REl's purchases of snowboards during September. During the same month, 106 snowboards were sold. REl uses a periodic imventory system. (a) Four answer is incorrect: Compute the ending inventory at September 30 using FIFO, LFO, and average-cost. (Round average cost per unit to 3 decimal places, es. 125.153 and final answers to 0 decimal places, e.3. 125.)