Periodic Inventory by Three Methods; Cost of 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 70 units @ $102 Aug. 30 Purchase 30 units @ $108 Dec. 12 Purchase 70 units @ $110 There are 80 units of the item in the physical inventory at December 31. The per Determine the inventory cost and the cost of merchandise sold by three methods Cost of Merchandise Inventory and Cost of Merchandise Sold Inventory Method Merchandise Inventory Merchandise Sold a. First-in, first-out (FIFO) $ b. Last-in, first-out (LIFO) c. Weighted average cost