Periodic Inventory Using FIFO, LIFO, and Weighted Average Cost Methods The units of an item avaitable for sale during the year were as follows: There are 17 units of the item in the physical inventory at December 31 . The periodic inventory system is used. Determine the inventery cost using the (o) first-in, first-out (FIFO) method; (b) last-in, first-out (LIFO) method; and (c) weighted average cost method (round per-unit cost to two decimal Daces and your final answer to the nearest whole dollar). Lower-of-Cost-or-Market:Method On the basis of the following data, determine the value of the inventory of the lower-of-cost-or-market by applying lower-of-cost-or-market to each inventory item, as shown in Exhibit 10