Mar. 10 Purchase 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 30 units at $100 60 units at $112 Aug. 30 10 units at $116 Dec. 12 Purchase 100 units at $122 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. Round interim calculations to one decimal and final answers to the nearest whole dollar. Purchase 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 (LFO) Weighted average cost