Siphiwe has a mortgage bond with ABSA bank. The bank is charging interest on the loan at 12% pa, compounded monthly. The monthly instalments are R 11 500. ABSA changed the interest rate to 11.75 % when Siphiwe still had 72 payments to make. What will his new repayments need to be in order that he still manages to pay off the bond over the remaining 72 months?