I think it might depend on your own situation. Maybe there is some kind of standard I really don't know. To me it depends on how much I need to pay the bills and then I'm trying to put the rest of the money back in the business.

Since my business is still young and I'd like to see it grow I want to put as much back into it as I can. I'm happy to go without a few things in my personal life now if it will help ensure I won't have to go without them in the future.