Periodic Inventory Using FIFO, LIFO, and weighted Average Cost Methods The units of an Item available for sale during the year were as follows: Jan. 1 Inventory 12 units at $42 $504 Aug. 13 Purchase 18 units at $45 810 Nov. 30 Purchase 4 units at $47 188 Available for sale 34 units $1.502 There are 12 units of the item in the physical inventory at December 31. The periodic inventory system is used. Determine the inventory cout using the (s) fit in first out (FFO) method (b) last in, first-out (LIFO) method; and (c) weighted average cost method (round per-unit cost to two decimal places and your final answer to the nearest whole dar) a First-in, first-out (FIFO) bastin, first out (FO) c Weighted average cost