So I hit a car today exiting a small shopping complex to a main street. I traded insurance info with them as well as trading contact info. I ended up hitting the area between their car's driver side door and front quarter panel and causing a dent the size of a fist. I took 100% responsibility for the accident and I thought they would be really mad about it but these people were the nicest people I've met in a while. We even made jokes about our cars. My cousin advised me that I should see if I can arrange a way with them so I can pay full cash instead of going through insurance, as it was going to raise my premium quite a bit.
My question is, roughly how much of an increase am I looking at annually? and roughly how long will it take for them to start decreasing it?