The units of Manganese Plus available for sale during the year were as follows: Inventory $600 Mar. 1 June 16 20 units @ $30 27 units @ $31 Purchase 837 Nov. 28 Purchase 37 units @ $35 1,295 84 units $2,732 There are 15 units of the product in the physical inventory at November 30. The periodic inventory system is used. 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 weighted average cost methods. Round intermediate calculations and final answer to two decimal places. Previous