Functions Reference

Financial functions
F
ILEMAKER FUNCTIONS REFERENCE 94
NPV
Purpose
Returns the net present value (NPV) of a series of unequal payments made at regular intervals,
assuming a fixed interest rate per interval.
Format
NPV(payment;interestRate)
Parameters
payment - a repeating field containing unequal payment amounts, or an expression that returns a
reference to one.
interestRate - interest rate.
Data type returned
number
Originated in
FileMaker Pro 6.0 or earlier
Description
Use this function to calculate NPV. For example, if someone borrows money from you and pays you
back in unequal amounts over a period of several years, you can use the
NPV function to calculate
the result.
Examples
NPV(Loan;.05) returns 156.91277445..., when the repeating field, Loan, contains -2000 (the
initial payment), 600, 300, 500, 700, and 400. The result (156.91277445...) is the actual profit in
today’s dollars that will be realized from this transaction.
NPV(Amounts;.10) returns 16758.35604870..., when the repeating field, Amounts, contains -
5000 (the initial investment), 10,000, 0, 10,000, and 10,000.
If you want each return value to return 2 decimal places, surround the current formulas with the
correct
Round function: Round(Current Formula;2).
NPV
loan amount
1 interestRate+
--------------------------------------------
first payment
1 interestRate+
2
--------------------------------------------------- -
second payment
1 interestRate+
3
--------------------------------------------------- -

n
th
payment
1 interestRate+
n1+
------------------------------------------------------------
++++=