Periodic Inventory by Three Methods. Cost or Merchandise Sold The units of an item available for sale during the year were as follows: Jan. 1 Inventory 30 Units @ $94 Mar. 10 Purchase 50 Units @ $102 Aug.30 Purchase 20 Units @ $106 Dec. 12 Purchase 100 Units @ $110 There are 40 units of the item in the physical Inventory at December 31. The periodic inventory system is used. Determine the inventory cost and the cost or merchandise sold by three methods. Round interim calculations to one decimal and final answers to the nearest whole dollar