Periodic inventory using FIFO, LIFO, and weighted average cost methods The units of an item available for sale during the year were as follows: (FIFO) method; (b) last-in, first-out (LIFO) method; and (c) weighted average cost method. a. First-in, first-out (FIFO) method b. Last-in, first-out (LIFO) method c. Weighted average cost method $$$xxx Feedback 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. and the ending inventory. 0 more Check My Work uses remaining