Tano issues bonds with a par value of $84,000 on January 1, 2017. The bonds annual contract rate is 9%, and interest is paid semiannually on June 30 and December 31. The bonds mature in three years. The annual market rate at the date of issuance is 12%, and the bonds are sold for $77,807. What is the amount of the discount on these bonds at issuance?