eBook Show Me How Calculator Print Item Periodic Inventory by Three Methods The units of an item available for sale during the year were as follows: Jan. 1 Inventory 10 units at $34 Feb. 17 Purchase 12 units at $35 Jul. 21 Purchase 19 units at $36 Nov. 23 Purchase 6 units at $38 There are 9 units of the item in the physical inventory at December 31. The periodic inventory system is used. Round average unit cost to the nearest cer and final answers to the nearest whole dollar, if required. a. Determine the inventory cost by the first in, first-out method. b. Determine the inventory cost by the last-in, first-out method. c. Determine the inventory cost by the weighted average cost method