Periodic inventory using FIFO, LIFO, and weighted average cost methods The units of an item available for sale during the year were as follows: Date Line Item Description Units Cost per Unit Amount Jan. 1 Inventory 16 units at $34 $544 Aug. 13 Purchase 7 units at $36 252 Nov. 30 Purchase 7 units at $37 259 Available for sale 30 units $1,055 There are 18 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)