Crystal Lake Corporation”s accounting records show the following at yearend December 31, 2012:

Purchase Discounts

$5,900

Beginning Inventory

$31,720

Freight-in

8,400

Ending Inventory

27,950

Freight-out

11,100

Purchase Returns

3,600

Purchases

162,500

Assuming that Crystal Lake Corporation uses the periodic system, compute (a) cost of goods purchased and (b) cost of goods sold.