3.3% interest is one yuan, and 3.3% interest in January is zero point zero point zero point three hundred and three yuan. The monthly interest rate is 0.0033 yuan1yuan * 100%=0.33%, and the annual interest rate is equal to the monthly interest rate multiplied by12 = 0.33% */. The annual interest rate is equal to the monthly interest rate multiplied by 12. Answer over.