The units of Manganese Plus available for sale during the year were as follows: Mar. 1 Inventory 25 units$29 June 16 Purchase 27 units$32 Nov. 28 Purchase 44 units$391,716 $725 864 96 units $3,305 There are 13 units of the product in the physical inventory at November 30. The periodic inventory system is used. Determine the difference in gross profit between the LIFO and FIFO inventory cost systems. Enter the answer as a positive number