On September 12, Vander Company sold merchandise in the amount of $5,800 to Jepson Company, with credit terms of 2/10, n/30. The cost of the items sold is $4,000. Vander uses the periodic inventory system and the gross method of accounting for sales. On September 14, Jepson returns some of the non-defective merchandise, which is restored to inventory. The selling price of the returned merchandise is $500 and the cost of the merchandise returned is $350. The entry or entries that Vander must make on September 14 is (are):