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 th same month, 104 EZ slide snowboards were sold. Wilhorse Co. uses a periodic inventory system. Compute the ending inventory at September 30 using the FIFO, LIFO and average-cost methods. Compute the cost of goods sold at September 30 using the FIFO, LIFO and average-cost methods