IRR:
http://www.tutorialized.com/view/tut...in-Excel/23330
http://www.techonthenet.com/excel/formulas/irr.php

IPMT:
http://www.bettersolutions.com/excel...P446920522.htm
http://www.techonthenet.com/excel/formulas/ipmt.php

Rate:
http://www.ehow.com/how_2103566_calc...ing-excel.html
http://www.techonthenet.com/excel/formulas/rate.php


Regards,
Ryan---
--
RyGuy


"Ken W" wrote:

I'm not sure which financial function to use. I'm trying to determine the
rate of return of a known investment, with a known time period and known
ending value. What do I use to solve for the rate of return over the life of
this investment?