Probably pretty low for CSOM. Like less than 10%.
Depending on how your application was set up they might consider you for CLA. If they are considering you for CLA, I’d say you have an 85% chance there.
CSOM is hard to transfer into though. A 3.5 probably won’t be good enough and college classes will be harder than regular high school classes. It’s certainly possible if you work hard but if you get into another good business school, that is a much safer option than hoping you can transfer into CSOM.