The interest is 2% 90,000 yuan, and the mortgage is 360,000 yuan, which will be repaid in fifteen years, with a monthly payment of 2828438+04 yuan. According to relevant data, the annual interest rate of loans over five years announced by the People's Bank of China is 4.9%. According to the benchmark interest rate, with the interest rate unchanged, the repayment method is "equal principal and interest repayment", the total interest is 149065.05 yuan, the monthly repayment amount is 2828. 14 yuan, the repayment method is "equal principal repayment", and the total interest is.