Possible to withdraw the Acceptance of Admission

So far, I have not accept any offer yet but I was accepted to UCLA and a few other universities. Since I am a non CA resident, my Cost of Attendance skyrocketed. UCLA has a provisional financial award for me but I have to submit my Statement of Intent to Register (SIR) which requires me to accept the offer. I want to be sure what my official award is and overall. Is it possible to withdraw the acceptance offer? I am very unsure how this works.

Yes. That’s what people do when they get in to a school they want to off a waitlist.

Yes, but you will lose your deposit.