Unit Date Explanation Units Unit Cost/Price Price Sales Nov. 1 Beginning inventory 31 $299 5 Purchases 20 304 12 Sales (40) 472 19 Purchases 45 309 22 Sales (45) 483 25 Purchases 30 314 41 (a) 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.) FIFO Cost of goods sold $ Ending inventory $ +A +A $ Average Cost