Purrfect Pets uses the perpetual inventory system. At the beginning of the quarter, Purrfect Pets has $46,000 in inventory. During the quarter the company purchases $10,300 of new inventory from a vendor, returned $800 of inventory to the vendor, and took advantage of discounts from the vendor of $360. At the end of the quarter the balance in inventory is $34,500. What is the cost of goods sold?