According to Baidu's experience, we need to calculate a loan of 654.38+ million. What was the annual interest rate when the interest rate was 3%? Assuming that the total loan amount is P (principal) and the annual interest rate is R, the annual interest rate I can be calculated as: I = P× R. According to the subject conditions, P= 100000, and the annual interest rate is 3% (0.03 when converted into decimal), which can be calculated by substituting into the formula. The calculation result is: 3000 yuan. So when the annual interest rate of 65,438+10,000 yuan loan is 3%, the annual interest is 3,000 yuan.