公式(Formula)

| principal amount borrowed | 实际借款数额,借入的本金金额 |
| periodic payment | 分期付款额,定期支付金 |
| periodic interest rate | 每期利率,定期利息 |
| total number of payments | 还贷总次数,还款总期数 |

| principal amount borrowed | 实际借款数额,借入的本金金额 |
| periodic payment | 分期付款额,定期支付金 |
| periodic interest rate | 每期利率,定期利息 |
| total number of payments | 还贷总次数,还款总期数 |
