GUIDE深度 · Deep dive
Deriving the Final Grade Formula
Overall = current x (1 - final weight) + final x final weight. Substitute the target and solve for the final. Keep weight units consistent; >100 means the final alone can't reach it, ≤0 means the target is already secured.
Confirm weight/current grade.
Substitute the target and solve.
Check >100/≤0.
A 0 weight can't be solved.
Rounding can shift 0.5%.
FAQ
How do I use 50% weight?
Use 0.5 in the formula.
Target 90, current 85, weight 30?
Needs 101.7%, above 100—the final alone can't do it.