It signifies how well the student is carrying out with the disciplines. As stated, it's the equal of the GPA. It can 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=1 ^ NC C_ i cdot f(N_ i )displaystyle textstyle sum _ k=1 ^ NC C_ i displaystyle displayst