Periodic Inventory by Three Methods The units of an amable for sale during the year were as follows Jan 1 Inventory 10 units $29 Feb. 17 Purchase 17 units $30 July 21 Purchase 5 units 533 Now. 22 Purchase 13 units $34 There are to units of the item in the shoulcal inventory at December 31. The periodic Inventory system in ned, Determine the inventory cost by the finest method. b. Determine the inventary cost by the last in first-oot mettiod c. Determine the inventory cost by the weighted average cost method. Round average unit cost to the nearest cent and final answers to the nearest whole dollar, it required