depends on what kind and how big if you own a chain obviously alot more...my friend owns 2 pizza shops and looking to open a third and he has a nice sized house and drives a nice car and lives well...no millionaire by any means but its decent money i dont know exact figures though!!
my dad used to own two Domino's but i guess it doesn't help since i don't know how much he made
Life is too short, so love the one you got. Cause you might get run over, or you might get shot.