eBook Show Me How Calculator 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 $110 Mar. 10 Purchase 40 units at $120 Aug 30 Purchase 10 units at $126 Dec. 12 Purchase 100 units at $130 There are 80 units of the item in the physical inventory at December 31. The periodic eventory 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 Cost of Ending Inventory and cost of Goods Sold Inventory Method Ending Inventory Cost of Goods Sold First, first out (FFO) Lastin, first-out (LIFO Weighted average cost