REl sells snowboards. Assume the following information relates to REI's purchases of snowboards during September. During the same month, 104 snowboards were sold. REl uses a periodic inventory system. X Your answer is incorrect. Compute the ending inventory at September 30 using FIFO, LIFO, and average-cost. (Round overage cost per unit to 3 decimal places, eg. 125.153 and final answers to 0 decimal places, eg. 125.) Compute the ending inventory at September 30 using FIFO. LFO, and average-cost. (Round average cost per unit to 3 decimal ploces, es. 125.153 and final answers to 0 decimal ploces, eg, 125. Compute the cost of goods sold for the month using the FIFO, LIFO, and average-cost methods, (Round average cost per unit to 3 decimol places, es. 125.153 and final answers to 0 decimal places, es. 125)