@travishorn/financejs
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    Function ppmt

    • Calculates the payment on the principal for a given period for an investment based on periodic, constant payments and a constant interest rate.

      Remarks:

      • Make sure that you are consistent about the units you use for specifying rate and nper. If you make monthly payments on a four-year loan at 12 percent annual interest, use 0.12 / 12 for rate and 4 * 12 for nper. If you make annual payments on the same loan, use 0.12 for rate and 4 for nper.

      Parameters

      • rate: number

        The interest rate per period.

      • per: number

        Specifies the period and must be in the range 1 to nper.

      • nper: number

        The total number of payment periods in an annuity.

      • pv: number

        The present value — the total amount that a series of future payments is worth now.

      • OptionalfutureValue: number = 0

        The future value, or a cash balance you want to attain after the last payment is made. If fv is omitted, it is assumed to be 0 (zero), that is, the future value of a loan is 0.

      • Optionaltype: 0 | 1 = 0

        The number 0 (zero) or 1 and indicates when payments are due. Set type equal to 0 or omitted if payments are due at the end of the period. Set type equal to 1 if payments are due at the beginning of the period.

      Returns number

      The payment on the principal for the specified period.

      When per is outside the valid range.

      ppmt(0.1 / 12, 1, 2 * 12, 2000); // -75.62

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