It represents how properly the coed is doing at the disciplines. As described, it's the equivalent in the GPA. It may be calculated by the following 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=one ^ NC C_ i cdot file(N_ i )displaystyle textstyle sum _ k=1 ^ NC C_ i displaysty