(14 points, 5, 5, and 4) Using periodic inventory, beginning inventory and purchases are shown below: Units Price Jan 1. Beginning inventory 1,100 $ 7.25 $ 7.975 Feb 7. Purchase 1.450 $ 7.50 $ 10.875 July 10. Purchase 1.600 $ 8.00 $ 12.800 Nov 25. Purchase 1.000 3 8.50 $ 8.500 Total: 5.150 $ 40.150 At December 31 the ending Inventory consisted of 1,500 units. 1. Find cost of goods sold based on the average-cost method: S. 2. Find cost of goods sold based on the LIFO method: $ 3. Find ending inventory based on the FIFO method: $