RE1 sells snowboards. Assume the following information relates to REis purchases of snowboards diring September. During the same month, 103 snowboards were sold. REi uses a periodic inventory system. (a) Compute the ending inventory at September 30 using FIFO, LIFO, and average-cost. (Round average cost per unit to 3 decimal places eg. 125.153 and final answers to 0 decimal places, e.3. 125.) Compute the ending inventory at September 30 using FIFO, LIFO, and average-cost. (Round averoge cost per unit to 3 decimal ploces, e.g. 125.153 and final answers to 0 decimal places, eg. 125.) (b) Compute the cost of goods sold for the month using the FIFO, LIFO, and average-cost methods. (Round overage cost per unit to 3 decimal places, eg. 125.153 and final answers to 0 decimal places, eg. 125.)