# 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.

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

`PPMT`: The PPMT function calculates the payment on the principal of an investment based on constant-amount periodic payments and a constant interest rate.

`PMT`: The PMT function calculates the periodic payment for an annuity investment based on constant-amount periodic payments and a constant interest rate.

`NPER`: The NPER function calculates the number of payment periods for an investment based on constant-amount periodic payments and a constant interest rate.

`IPMT`: The IPMT function calculates the payment on interest for an investment based on constant-amount periodic payments and a constant interest rate.

`FVSCHEDULE`: The FVSCHEDULE function calculates the future value of some principal based on a specified series of potentially varying interest rates.

`FV`: The FV function 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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