Periodic Inventory by Three Methods The units of an item available for sale during the year were as follows: 4 units at $31 Jan. 1 Inventory Feb. 17 Purchase 8 units at $32 Jul. 21 Purchase 20 units at $34 Nov. 23 Purchase 14 units at $35 There are 4 units of the item in the physical inventory at December 31. The periodic in 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. eAssignmentsessionLocator - D eBook Show Me How Periodic Inventory by Three Methods The units of an item available for sale during the year were as follows: Jan. 1 Inventory 4 units at $31 Feb. 17 Purchase 8 units at $32 Jul. 21 Purchase 20 units at $34 Nov. 23 Purchase 14 units at $35 There are 4 units of the item in the physical inventory at December 31. The periodic inventory system is used. Round average unit cost to the nearest cent and final answers to the nearest whole dolar 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