etermine the ending inventory and the cost of goods sold under each of the assumed cost flow methods (FIFO, LIFO, and erage-cost). (Round answers to 0 decimal places, e.g. 1,250.) eTextbook and Media Swifty Company had a beginning inventory on January 1 of 200 units of Product 41815 at a cost of $20 per unit. During the year, purchases were as follows. Swifty Company uses a periodic inventory system. Sales totaled 1,040 units