Returns the future value of an investment based on periodic, constant payments and a constant interest rate.
| Name | Type | Description |
| arg1 | number | Is the interest rate per period. For example, use 6%/4 for quarterly payments at 6% APR. |
| arg2 | number | Is the total number of payment periods in the investment. |
| arg3 | number | Is the payment made each period; it cannot change over the life of the investment. |
| arg4 | number | Is the present value, or the lump-sum amount that a series of future payments is worth now. If omitted, Pv = 0. |
| arg5 | number | Is a value representing the timing of payment: payment at the beginning of the period = 1; payment at the end of the period = 0 or omitted. |