My PCAT Composite is a 96%, but my biology is really low in comparison (61%).
I am currently taking physiology, and I still have to take Cal 1 & Anatomy. Without those, my Math/Science GPA (they only take into account their prerequisites) is a 3.69 and my cumulative GPA is a 3.56, but I'm not expecting to get an A in physiology so it will go down.
My degree will be in Chemistry with a Biochemistry concentration.
My friend that just finished P1 said that she thinks PCAT isn't a major deciding factor, and anything above 50-60% is looked favorably upon.