Calculator The units of Manganese Plus available for sale during the year were as follows Mar. 1 Inventory 24 units $32 $768 June 16 Purchase 28 units $32 Nov. 28 Purchase 37 units $39 896 1,443 $3,107 89 units are 18 units of the product in the physical inventory at November 30. The periodic inventory system is used. Round answers to the nearest whole dollar a. Determine the inventory cost by the FIFO method. b. Determine the inventory cost by the LIFO method. c. Determine the inventory cost by the average cost methods. Calculator The units of Manganese Plus available for sale during the year were as follows Mar. 1 Inventory 24 units $32 $768 June 16 Purchase 28 units $32 Nov. 28 Purchase 37 units $39 896 1,443 $3,107 89 units are 18 units of the product in the physical inventory at November 30. The periodic inventory system is used. Round answers to the nearest whole dollar a. Determine the inventory cost by the FIFO method. b. Determine the inventory cost by the LIFO method. c. Determine the inventory cost by the average cost methods