how 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 40 units at 592 Mar. 10 Purchase 40 units at 510-4 Aug. 30 Purchase 30 units at 5110 Dec. 12 Purchase 90 units at 5112 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 demand final annars to the nearest whole dollar Cost of Ending Inventory and Cost of Goods Sold Inventory Method Ending Inventory cost of Goods sold Fistinu Last LIPI Weighted average con ul