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 50 units at $114 Mar. 10 Purchase 70 units at $124 Aug. 30 Purchase 30 units at $130 Dec. 12 Purchase 50 units at $132 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