Sanfillipo, Incorporated, had $800$ units of inventory on hand at March $1$ of the current year, costing $$20$ each. urchases and sales of inventory during the month of March were as follows:

$\backslash$table$[[$Date$,,$Purchases,,Sales$],[$March $8,,.,,600$ units$],[$March $15,400,$units @ $$22,$each,$],[$March $22,400,$units @ $$24,$each,$],[$March $27,,,,400$ units$]]$

Sanfillipo uses the periodic inventory system. According to a physical count, $600$ units were on hand at the end of March.

The cost of goods sold for March applying the FIFO method is: