It represents how effectively the coed is executing at the disciplines. As talked about, it is the equivalent in the GPA. It could be calculated by the next system: 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=one ^ NC C_ i disp