### Definition of RATE

Calculates the interest rate of an annuity investment based on constant-amount periodic payments and the assumption of a constant interest rate.

### Sample Usage

`RATE(12,-100,400,0,0,0.1)`

`RATE(A2,B2,C2,D2,1,0.08)`

### Syntax

RATE(number_of_periods, payment_per_period, present_value, [future_value, end_or_beginning, rate_guess])

`number_of_periods`

- The number of payments to be made.`payment_per_period`

- The amount per period to be paid.`present_value`

- The current value of the annuity.`future_value`

- **[** OPTIONAL **]** - The future value remaining after the final payment has been made.`end_or_beginning`

- **[** OPTIONAL - `0`

by default **]** - Whether payments are due at the end (`0`

) or beginning (`1`

) of each period.`rate_guess`

- **[** OPTIONAL - 0.1 by default **]** - An estimate for what the interest rate will be.

### See Also

`PV`

: Calculates the present value of an annuity investment based on constant-amount periodic payments and a constant interest rate.

`PPMT`

: Calculates the payment on the principal of an investment based on constant-amount periodic payments and a constant interest rate.

`PMT`

: Calculates the periodic payment for an annuity investment based on constant-amount periodic payments and a constant interest rate.

`NPER`

: Calculates the number of payment periods for an investment based on constant-amount periodic payments and a constant interest rate.

`IPMT`

: Calculates the payment on interest for an investment based on constant-amount periodic payments and a constant interest rate.

`FVSCHEDULE`

: Calculates the future value of some principal based on a specified series of potentially varying interest rates.

`FV`

: Calculates the future value of an annuity investment based on constant-amount periodic payments and a constant interest rate.

`CUMPRINC`

: Calculates the cumulative principal paid over a range of payment periods for an investment based on constant-amount periodic payments and a constant interest rate.

`CUMIPMT`

: Calculates the cumulative interest over a range of payment periods for an investment based on constant-amount periodic payments and a constant interest rate.

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