How do CSUs recalculate GPA?

I’ll be transferring to a CSU in the fall with an AD-T(unless I go to SDSU). I’ll have completed 75 units at two separate colleges. Is my CSU going to recalculate my GPA? An AD-T is only supposed to be 60 units so I’m wondering if that’s going to be how many credits I hold when I’m enrolled, making it easier to move my GPA up or down as opposed to holding 75. Also are they going to do any recalculations? Like only counting the AD-T classes in calculation and not calculating the other classes I didn’t need?