The units of Manganese Ples available for sale during the year vere as follows: Mar 1 Inventory 22 units June 15 Purchase 23 units $31 Nov. 28 Purchase 42 unts 98 units 5690 1.023 1.512 53.225 There are 11 units of the product in the physical inventory at November 30. The periodic inventory system is used. Round answers to the nearest whole dollar 2. Determine the inventory cost by the FIFO method. b. Determine the inventory cost by the method. c. Determine the inventory cost by the average cost methods