It signifies how nicely the student is doing at the disciplines. As mentioned, it's the equal on the GPA. It may be calculated by the next formulation: C R = ? k = 1 N C C i ? file ( N i ) ? k = one N C C i displaystyle CR=textstyle frac textstyle sum _ k=1 ^ NC C_ i cdot file(N_ i )displaystyle textstyle sum _ k=one ^ NC C_ i displaystyle displays