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 9 units at $26 $234 Aug. 13 Purchase 6 units at $28 168 Nov. 30 Purchase 18 units at $30 540 Available for sale 33 units $942 There are 10 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, first- 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 the nearest whole dollar). a. First-in, first-out (FIFO) 290 b. Last-in, first-out (LIFO) $ 624 x C. Weighted average cost 285 Feedback Check My Work