(27 points, 9 each) Using periodic inventory, beginning inventory and purchases are shown below: Units Price - Jan 1. 1,100 $7.30 $8,030 Beginning inventory Purchase Feb 7. $7.60 $8.20 July 10. 1,450 1,600 1,000 Purchase $11,020 $13,120 $9,000 $41,170 Nov 25. $9.00 Purchase Total: 5,150 At December 31 the ending inventory consisted of 1,500 units. a. Find cost of goods sold based on the average-cost method: $ b. Find cost of goods sold for the current year based on the LIFO method: $ c. Find ending inventory based on the FIFO method: $