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 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 LIFO method is:

Multiple Choice

$$20,960.$

$$22,400.$

$$21,500.$

$$20,400.$