The annualized rate is 9.56%. The annual interest of a loan of 300,000 yuan is 28,680 yuan, so the annualized rate is 286.8-300,000 yuan. The answer is 0.0956 times 100=9.56%. In other words, the annualized rate is 9.56%.

Second, I borrowed 654.38+00,000 yuan, and the interest was 654.38+0 points a year. How to calculate?

The interest rate is 1 ten thousand, 1%, and the annual interest rate is 1 ten thousand. Ten thousand yuan/12 is about 833.3 yuan. Ten thousand /365 days is about 27.4 yuan. \: \ Matching principal and interest repayment needs to calculate the total loan interest first, and then add the loan principal to divide the total amount evenly every month. Monthly repayment amount = [loan principal × monthly interest rate ×( 1 monthly interest rate) repayment months ]=[( 1 monthly interest rate) repayment months]. \ In this way, the loan principal can be directly and evenly distributed to each month, and the loan interest will be less and less with the return of the principal. Monthly repayment amount = (loan principal/repayment months) remaining outstanding principal × monthly interest rate.

What is the annual interest of 300,000 yuan in the bank?

At present, the bank interest rate is very low, which varies from place to place and can float. According to the one-year interest rate of 3%, the interest of 300 1 year is: 3,000,003% = 9,000 yuan.