For something "simple" like your example, perhaps the following idea...

=IRR({-200000,250000})

returns 25%

(Not array entered)
--
Dana DeLouis
Windows XP & Office XP
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"scott" wrote in message
...
If I invest $200,000
And end up with $250,000
I've recieved a 25% rate of return(This is easy on
calculator)

If I know the beginning dollar value, and the ending
dollar value, what formula could I use to calculate this
25% ROR?

Thanks a lot. Scott