Periodic Inventory Using FIFO, LIFO, and weighted Average Cost Methods Aug. 7 The units of an item available for sale during the year were as follows: Jan. 1 Inventory 15 units at $34 $510 Purchase 15 units at $37 555 Dec. 11 Purchase 15 units at $39 585 45 units $1,650 There are 17 units of the item in the physical Inventory at December 31. The periodic inventory system is used. Determine the inventory cost using (a) the first-in, first- out (FIFO) method; (b) the last in, first-out (LF) 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) a. First-in, first-out (FIFO) b. Last-in, first-out (LIFO) Weighted average cost C