The units of an item available for sale during the year were as follows: Inventory 6 units at $25 Jan. 1 Aug. 13 Purchase 18 units at $28 Nov. 30 8 units at $29 32 units Available for sale 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) Last-in, first-out (LIFO) Weighted average cost b. Purchase C. Feedback $ $ $150 504 232 $886 $ Check My Work a. When the FIFO method is used, costs are included in cost of goods sold in the order in which they were purchased. b. When the LIFO method is used, the cost of the units sold is the cost of the most recent purchases. c. The average cost method is sometimes called the weighted average method. The average cost method uses the average unit cost for determining cost of goods sold and the ending inventory.