Periodic Inventory by Three Methods; Cost of Merchandise Sold The units of an item available for sale during the year were as follows 50 units $112 Jan. 1 Inventory 60 unts $122 Mar. 10 Purchase 30 units $130 Aug. 30 Purchase 60 units $134 Dec. 12 Purchase There are 90 units of the item in the physical Inventory at December 31. The periodic inventory system is used Determine the inventory cost and the cost of merchandise soid by three methods. Round interim calculations to one decimal and final answers to the nearest whole dollar. ast-in, first-out (IFO) Weighted avenige cost The 2