But its a complex calculation best left to a financial calculator or Excel.If you want to attempt the math, Wikipedia has the forumula:http://en.wikipedia.org/wiki/Loan#Loan_paymentYou'll need to apply a little algebra to that formula to get to the rate calculation from the other three.

Most 14 year olds took algebra, but 95% of the adults I know aren't very proficient at algebra.

Finally a good use for algebra right!

Pretty much if you have gotten though Algebra II and Geometry (and are literate) you maxed out what you might need to know on a regular basis.

I just used algebra in real life when I said I never would in high school!

The school had limited resources, we really were only taught basic Algebra, basic geometry, biology, US History and English (I never was required to write an essay).

Study your Geometry and Algebra books again...and get really good at both. 

First, this is why I say one of the most important books every REI needs to read (re-read) is their Algebra book (and the Geometry book too).Second, don't worry about the formula for paydown. 

The first person to come up with this idiotic list didn't own an hour glass (that's how long this has been passed around), the the people that continue to pass it, don't own a watch (or cell phone) ... and none of them can tell time.Here's your new list:1 - Learn Geometry and Algebra inside and out. 

Algebraically you can reshuffle the formula into Value = NOI / Cap Rate which is what you have done... so yes, algebraically it works.