Date Transaction Number of Units Unit Cost/Price Jan. 1 Beginning inventory 500 $ 10 Feb. 25 Sale 300 20 May 21 Purchase 400 12 Jul. 15 Purchase 500 15 Dec. 10 Sale 800 20 All purchase/sale transactions are made on credit. The company uses the FIFO method and perpetual inventory system to record transactions. The entry to record the transaction on December 10 will involve a debit to Cost of Goods Sold for _____.