Periodic inventory by three methods; cost of goods sold The units of an item available for sale during the year were as follows: Date Line Item Description Units and Cost Jan. 1 Inventory 180 units at $108 Mar. 10 Purchase 224 units at $110 Aug. 30 Purchase 200 units at $116 Dec. 12 Purchase 196 units at $120 There are 208 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