Help please! thank you. My FIFO and LIFO are not right.

Delmott sells a snowboard, Xpert, that is popular with snowboard enthusiasts. Below is information relating to Delmott's purchases of Xpert snowboards during September. During the same month, 101 Xpert snowboards were sold. Delmott uses a periodic inventory system. Compute the ending inventory at September 30 using the FIFO, LIFO and average-cost methods. (Round average cost per unit to 3 decimal places, e.g. 125.153 and final answers to 0 decimal places, e.g. 125.) The ending inventory at September 30 using the FIFO The ending inventory at September 30 using the LIFOs The ending inventory at September 30 using the average-cost Compute the cost of goods sold at September 30 using the FIFO, LIFO and average-cost methods. (Round average cost per unit to 3 decimal places, e.g. 125.153 and final answers to O decimal places, e.g. 125.)