Sanfillipo, Incorporated, had 800 units of inventory on hand at March 1 of the current year, costing $20 each. Purchases and sales of inventory during the month of March were as follows: Sanfillipo uses the peviodic inventory system. According to a physical count, 600 units were on hand at the end of March. The cost of inventory at the end of March applying the FIFO method is: Sanfillipo, Incorporated, had 800 units of inventory on hand at March 1 of the current year, costing $20 each. Purchases and sales of inventory during the month of March were as follows: Sanfillipo uses the peviodic inventory system. According to a physical count, 600 units were on hand at the end of March. The cost of inventory at the end of March applying the FIFO method is