It signifies how properly the student is undertaking on the disciplines. As mentioned, it's the equivalent of your GPA. It can be calculated by the next formulation: C R = ∑ k = 1 N C C i ⋅ f ( N i ) ∑ k = 1 N C C i displaystyle CR=textstyle frac textstyle sum _ k=1 ^ NC C_ i cdot f