Determine the cost of goods sold and ending inventory using (1) FIFO and (2) average cost, assuming North Hills uses a perpetual inventory system. (Round FIFO answers to the nearest whole dollar, e.g. 5,275 and Average cost answers to 2 decimal places, e.g. 15.25. Do not round intermediate calculations.) North Hills, Inc. sells an Xpert snowshoe that is popular with snowshoe enthusiasts. The following information shows North Hills's purchases and sales of Xpert snowshoes during November