2700 yuan. China Bank official website inquired that the lowest comprehensive annualized interest rate given by BOC E-loan is 5.4%, and the interest rate is different with different personal qualifications. If you want to know how much interest BOC E needs for a loan of 50,000 years, you can set the loan annual interest rate to 5.4% and substitute it into the interest calculation formula: the loan interest is equal to the loan principal multiplied by the loan interest rate multiplied by the loan term, and you can get the annual interest rate of 50,000 multiplied by 5.4% multiplied by 1 equal to 2,700 yuan.