Depends on the position of your character. Just consider credits to real-world dollars. I would personally say that anything over a few billion credits is definitely way too rich.
It is also better for your character to start out with fewer credits and build up his/her wealth as part of RP. It's more realistic and fun that way, and it builds character.
It is also better for your character to start out with fewer credits and build up his/her wealth as part of RP. It's more realistic and fun that way, and it builds character.