Then it is 85 * (x-1)+94 = 85.2 * X.

Calculated X=45.

So there are 45 people.

Or 94-85=9 points.

The extra 9 points should be distributed to the whole class equally, and each person got 85.2-85=0.2 points.

So there are 9/0.2=45 people in the class.