47.6 yuan. According to the inquiry, a letter from official website shows that 68,000 yuan is 68,000 yuan, and the monthly interest of 0.7% is 0.07%. According to the principle that the interest is equal to the principal multiplied by the interest rate multiplied by the time, 68,000 yuan multiplied by 0.07% multiplied by 65,438+10 is equal to 47.6 yuan, and the monthly interest payable is 47.6 yuan.