REl sells snowboards. Assume the following information relates to REI purchases of snowboards during September. During the same month, 101 snowboards were sold. REl uses a periodic inventory system. Compute the ending inventory at September 30 using FIFO, LFO, and average-cost. (Round oversage cost per unit to 3 decimal places. es. 125.153 and final answers to 0 decimal places, es, 125. Compute the cost of goods sold for the month using the FFO, UFO, and wernge-cost methods. RRound overoge cost per unit to 3 decimal places, es. 125.153 and finat answers to 0 decimol places, eg 125J