How to know if it is a good deal.

[Derrick Sisney]

So, I was browsing on this WONDERFUL WEBSITE and noticed alot of the same questions from newbies (including myself), and from a couple of people who are almost "vets".
I decided to make this post because if it is at all possible could some of you vets post your "equation" for seeing if a property could possibly be a good deal.
Please post for "renting a property", "flipping (rehabbing) a property", "wholesaling", "sub2"...whatever you can think of. I understand there is more to it than this, but I believe this could help some newbies, and people that could possibly just give up. Thanks in advance and look forward to seeing some posts from you veterans.

Derrick