On December​ 1, Macy Company sold merchandise with a selling price of $ 5,000 on account to Mrs.​ Jorgensen, with terms 4​/10, ​n/30. On December​ 3, Mrs. Jorgensen returned merchandise with a selling price of $ 900. Mrs. Jorgensen paid the amount due on December 9. What journal entry did Macy Company prepare on December 9 assuming the gross method is​ used?