16. On July 1, Ferguson Company sold merchandise in the amount of $5,800 to Tracey Company, with credit terms of 2/10, n/30. The cost of the items sold is $4,000. Ferguson uses the perpetual inventory system. On July 5, Tracey returns some of the merchandise. The selling price of the merchandise is $500 and the cost of the merchandise returned is $350. The entry or entries that Ferguson must make on July 5 is: