It represents how properly the scholar is performing with the disciplines. As stated, it is the equivalent from the GPA. It may be calculated by the next components: 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(N_