Bing is correct, and the total repair cost should be fairly low.
However, what bothers me the most about this issue is that it appears the OP thinks that she isn’t responsible for fixing the car of this innocent bystander. Hopefully, my interpretation is wrong.
There is an epidemic of failure to take responsibility for one’s actions nowadays, and I hope that the OP isn’t one of those folks who is “never to blame”. Please tell me that I have misinterpreted the OP’s position on this matter!