they don't take it out on anyone, get it rechecked by some other guy if he mis-calculated, but see if u don't have any ap score or lower scores i.e. 1,2,3 then ur ibcc will come out to 750 plus, but u never know bec less people might apply this year due to the condition in pakistan and 820 might be enough to get into AIMC or KE.
by the way ur GPA has nothing to do with the equivalence bec i has a 4.3 and ended with high 850+
Just have faith in God.
p.s when the list first comes out don't panic if ur at the bottom bec u will certainly move up at least 10 spots bec a lot of people change their mind when they actually come here and see the condition of med school in pk.