Winston Distribution had the following widget sales and purchases for the month of December. The company accounts for inventory using the periodic LIFO method. What is the company's cost of goods sold for December?

$\backslash$table$[[$Date of Purchase,No$.$ Units,Unit Cost,Total Cost$],[$Beg$.$ Inventory,$50,$$$6\mathrm{.}50,$$$325\mathrm{.}00$