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 50 units at $124 Mar. 10 Purchase 60 units at $134 Aug. 30 Purchase 20 units at $138 Dec 12 Purchase 70 units at $140 There are no units of the item in the physical inventory at December 31. The periodic Inventory witem is ved Determine the ending inventory cost and the cost of goods sold by three methods. Round interim calculations to one decimal and final answers to the nearest whole dostar Cost of Ending Inventory and Cost of Goods Sold Inventory Method Ending Inventory Cost of Goods Sold First in, first-out (FIFO) Last in first-out (LIFO) Weighted average cost