David borrowed R911012,00 to refurbish his holiday home. The loan requires monthly repayments over 12 years. When he borrowed the money, the interest rate was 12,4% per annum, compounded monthly, but five years later the bank increased the annual interest rate to 13,9%, in line with market rates. After five years, the present value of the loan is R682081,77. With the new interest rate, his monthly payments (rounded to the nearest rand) will increase by