How is GPA calculated for this specific case?

Hi,

I am a OOS~>CCC~> UC transfer. How will my transferable GPA be calculated if I have courses from out of state and CCC? When I went to Berkeley itself last semester to get pre admissions advising I was told everything would be put together and that would be my transfer GPA. But the problem is that the admissions counselor I spoke with herself said she wasn’t sure but she thinks that’s how it will go. Anyone here who was in my situation and have any clue how my GPA is going to be evaluated?