Periodic inventory by three methods; cost of goods sold The units of an item available for sale during the year were as follows: Jan. 1 Inventory Mar. 10 Purchase Aug. 30 Purchase Dec. 12 Purchase There are 60 units of the item in the physical inventory at December 31. The periodic inventory system is used. Determine the ending inventory cost and the cost of goods sold by three methods. In your calculations round average unit cost to the nearest cent, and round all other calculations and your final answers to the nearest dollar. Cost of Ending Inventory and Cost of Goods Sold Cost of Goods Sold Inventory Method 50 units at $92 70 units at $100 30 units at $108 50 units at $114 First-in, first-out (FIFO) Last-in, first-out (LIFO) Weighted average cost Feedback Ending Inventory 108 X 5,740 X Check My Work Note that this exercise uses the periodic Inventory system. FIFO means that the first (?