(adsbygoogle = window.adsbygoogle || []).push({}); URGENT! NEED IMMEDIATE HELP -- Finance Equations

I need to figure out this finance calculator out almost immediately.

http://fdc.mortgage101.com/content/express/articles.asp?category=calculators&article=1177&p=securitym&acctid=304592 [Broken]

I need to know how the equations and formulas work on this page. I have not been able to figure out the exact equations for each output which is dependent upon the input.

I have set up an excel document that I tried to figure out all of the equations in, but I wasnt very successful. Nonetheless, if you need a good place to work, the file is located here... http://www.pyropixel.com/upload/finance.xls [Broken]

And please do not use any of excel's built in functions, I need everything in algebraic forum.

Thank you,

Sitedesigner

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# Finance Equations

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