It signifies how perfectly the student is doing on the disciplines. As described, it's the equal with the GPA. It might be calculated by the subsequent components: C R = ∑ k = one N C C i ⋅ file ( N i ) ∑ k = one 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 d