Aug. 13 690 The units of an item available for sale during the year were as follows: Jan. 1 Inventory 9 units at $45 $405 Purchase 15 units at 546 Nov. 30 Purchase 11 units at $48 528 Available for sale 35 units $1,623 There are 20 units of the item in the physical inventory at December 31. The periodic Inventory system is used. Determine the inventory cost using the first in, first- out (FIFO) method; (b) the last-in, first-out (LIFO) method, and (c) the weighted average cost method (round per-unit cost to two decimal places and your final answer to the nearest whole dollar), 2. First-In, first-out (FIFO) b. Last-in, first-out (LIFO) c. Weighted average cost