My friend used a policy loan of 90,000 yuan, which was repaid in three years, and it was more than 4,000 yuan per month. How are the principal and interest calculated? Why is it so high?

The interest calculation method of credit loans in the market is as follows: principal * monthly interest rate * number of periods.

Monthly repayment amount = (principal+principal * monthly interest rate * number of installments)/number of installments

Because you didn't provide a specific amount for rounding calculation.

In 2000, 36 monthly repayments were made.

The total principal and interest is 4000*36= 14400 yuan.

The interest is 144000-90000=54000 yuan.

The interest per period is 54,000/36 = 65,438+0,500.

The monthly interest rate is 1500/90000= 1.67%, that is, 1 min 67.

FYI