Inventory by Three Methods The unita of an item avalable for sale during the year were as follows: There are 17 unis of theitem in the physical inventory at December 31. The periodic inventory system in used. Determine the inventory cost using the (a) first-in, first-out (FIFO) method; (b) last-in, first-out (LFO) method; and (C) weighted average cost method (round per-unit cost to two decimal places and vour final answer to the nearest whole dollar)