This is the full question. Please show all work like step by step in how to get the answer. My previous work was wrong.

Wildhorse Co. sells a snowboard, EZslide, that is popular with snowboard enthusiasts. Below is information relating to Wildhorse Co.'s purchases of EZslide snowboards during September. During the same month, 107 EZslide snowboards were sold. Wildhorse Co. uses a periodicinventory system. (a) 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 O decimal places, eg. 125.) (b) 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, eg. 125.)