Does the subject want to ask "loan10.3 million, interest rate 4.75%, how much do you need to pay back a year?" 136 1750 yuan. The interest is equal to the loan amount multiplied by the deposit period multiplied by the interest rate, so you have to pay back 6 1750 yuan, plus the principal is 136 1750 yuan. Banks are legally established financial institutions engaged in monetary and credit business, and are the product of the development of commodity monetary economy to a certain stage.