I want to learn mathematics involved when I sit down to tally numbers for the property I like.

The YTM can be approximated using a bond value table (also referred as a “bond yield table”), or it can be determined using a programmable calculator equipped for bond mathematics calculations.

However, there is a certain piece of mind when it comes to being debt free, and sometimes the psychological benefits of being debt free can far outweigh the mathematical benefits of buying assets.

Financial Accounting, Managerial Accounting, Legal Environment of Business, and Liberal Mathematics.

I read Rich Dad Poor Dad in fall 2009, did my own mathematical proofs which all pointed to real estate, then just started researching and learning and bought my first property in June 2010.  

Well, given the prevailing cap rate of 5% your property is now actually worth mathematically $700,000.

https://www.zillow.com/mortgage-calculator/amortiz...Year 1, you're paying off $231k.Year 30, you're paying off $615k.But it averages out to $400k/year as it mathematically must given that $12,000,000/30 = $400k.Am I wrong?

I love mathematics very much.

Keeping that $57,750 in your pocket is mathematically nearly identical (less any applicable tax advantages, among other things) to taking out a second mortgage for $57,750 at 9.37% after putting 20% down.Are you really going to put that $57,750 to work elsewhere earning you better than 9.37%? 

One of the arguments I've heard is that, mathematically, the formula just doesn't make sense once you get past a certain level of ARV because rehab costs don't have a linear relationship to ARV.