A retailer uses the periodic inventory system. At year end, the following information was available: Ending inventory, $98,800; Purchases, $617,200; Freight out, $14,700; Purchase returns, $33,300; Freight in, $ 41,900; and Beginning inventory, $119,100. What was the retailer's cost of goods sold for the year? $679,400 $646,100 $617,200 $631,400