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# FileMaker Pro Custom Functions

NPVV ( cashFlowsList, interestRate )

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Lewis C. Lorenz, Lorenz Companies
http://www.LorenzCom.com

Calculate Net Present Value of a value list (not a repeating field) of cash flows with a specified rate of return.

Sample Input:
 NPVV ( "-500000¶200000¶300000¶200000", .1 ) NPVV ( List ( -2000, 600, 300, 500, 700, 400 ), .05 ) NPVV ( List ( -5000, 10000, 0, 10000, 10000 ), .1 )
Sample Output:
 80025.0262960180315552 164.7584131734254368 18434.1916535755754388

Then copy & paste into FileMaker Advanced's Edit Custom Function window.

## Description:

NPVV ( cashFlowsList, interestRate )

Created: 4-5-2013
Modified: 1-2-14
Author: Lewis C. Lorenz

Calculate Net Present Value of a value list of cash flows (cashFlowsList) with a specified rate of return (interestRate). Used to determine the present value of an investment by the discounted sum of all cash flows paid or received. Calculates Net Present Value from a value list instead of a repeating field that FileMaker Pro requires with its NPV function. Provides more flexibility and ease of use than the built-in function, with the same calculation results and similar speeds.

Example:
NPVV ( "-500000¶200000¶300000¶200000", .1 ) = 80025.0262960180315552
NPVV ( List ( -2000, 600, 300, 500, 700, 400 ), .05 ) = 164.7584131734254368
NPVV ( List ( -5000, 10000, 0, 10000, 10000 ), .1 ) = 18434.1916535755754388

DISCLAIMER: Using this NPVV function, several calculations were compared against the results obtained on other NPV calculators and the results matched. However, that does not guarantee a correct result in every operation of this custom function, so you assume this risk when you use it.

NOTICE: This is a recursive function. If you change the function name then also change it in the function code.

Note: these functions are not guaranteed or supported by BrianDunning.com. Please contact the individual developer with any questions or problems.

This is my Custom Function and I want to edit it