eBook Show Me How Periodic Inventory Using FIFO, LIFO, and Weighted Average Cost Methods The units of an item available for sale during the year were as follows: Inventory 17 units at $39 $663 Jan. 1 Aug. 13 Purchase 12 units at $41 492 Nov. 30 Purchase 16 units at $42 672 Available for sale 45 units $1,827 There are 27 units of the item in the physical inventory at December 31. The periodic inventory system is used. Determine the inventory cost using the (a) first-in, out (FIFO) 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 nearest whole dollar). a. First-in, first-out (FIFO) b. Last-in, first-out (LIFO) C. Weighted average cost