Northwest Fur Co. started 2018 with $110,000 of merchandise inventory on hand. During 2018, $480,000 in merchandise was purchased on account with credit terms of 3/15, n/45. All discounts were taken. Purchases were all made fob shipping point. Northwest paid freight charges of $8,100. Merchandise with an invoice amount of $4,000 was returned for credit. Cost of goods sold for the year was $369,000. Northwest uses a perpetual inventory system. Assuming Northwest uses the gross method to record purchases, what is the cost of goods available for sale? Multiple Choice $594.100 $579,820 $596,300 $579.700