# Payment Command

From GeoGebra Manual

- Payment[ <Rate>, <Number of Periods>, <Present Value>, <Future Value (optional)>, <Type (optional)> ]
- Calculates the payment for a loan based on constant payments and a constant interest rate.

**<Rate>**Interest rate per period.**<Number of Periods>**Total number of payments for the loan.**<Present Value>**Total amount that a series of future payments is worth now.**<Future Value (optional)>**A cash balance you want to attain after the last payment. If you do not enter a future value, it is assumed to be 0.**<Type (optional)>**Indicates when payments are due. If you do not enter a value or you enter 0 the payment is due at the end of the period. If you enter 1 it is due at the beginning of the period.

**Example:**`Payment[6%/12, 10, 10000, 0,1]`

yields a monthly payment for a loan of -1022.59.**Note:**Make sure that you are consistent about the units you use for`<Rate>`

and`<Number of Periods>`

. If you make monthly payments on a four-year loan at an annual interest rate of 6 percent, use 6%/12 for rate and 4*12 for number of payments.

**Note:**For all arguments, cash paid out is represented by negative numbers and cash received by positive numbers.

**Note:**See also Rate, Periods, Present Value and Future Value commands.