For example (arbitrary and not mathematically proven out):8 % interestNo balloon; mortgage over 15 yearsDown payment of 10%Another option is to wholesale it out; I know this is not the end state you want, but just another option.Lastly, you have to at least be willing to walk away, even if you don't want to ...

.- Labor and materials are so high that you can only build in the luxury market, making affordable housing mathematically impossible.With that said, we are seeing some cracks in the market:- Buyer fatigue is real.- Some buyers are pushing back.  

Mathematically (which is the greatest importance in real estate, with location, location, location being a close second, 200k net loss in population of a total 39.7M is less than 1/2 of 1% of the population.

The navy lifted restrictions on tattoos because roughly 1/3 of people eligible to join have body modification of some kind, and they realized if they immedialty discounted a third of the population, you mathematically prevent yourself from finding all possible top candidates.

From a mathematical standpoint, you should be able to find opportunities that get you a solid return. 

This started the whole mathematical wheels spinning on how to gauge the success.

Carrying and paying off debt are not simply mathematical actions.

Just be aware that average annual return is not the same as average annual rate of return.In its most basic mathematical formula, you take the sum of the return rates of your investment over a specific number of years and divide it by the number of years.

@Joe VilleneuveHey Joe,I’m actually well trained in mathematics and actually won a state-wide math competition for high schoolers In South Dakota (not meaning to brag).

But mathematically, the money doesn't really exist.