Periodic Inventory by the methods The units of an item vitable for sale during the year were as follows dan 1 Inventory 10 unitats Feb 17 Purchase $1 unitat 539 JUL 21 Purchase 19 units att Nov 23 Purchase units at $42 There are 10 units of them in the physical wwwntory at December 31. The periode inventory systems found average unit cost to the nortant and final state nearest whole della reguired a. Determine the inventory cost by the first in first-out method b. Determine the inventory cost by the institit-out method Determine the inventory cost by the weighted average cost method