Final Grade Planner — Every Class, One Plan

How the planner solves each class

For one class the formula is: required final = (target − current grade × (1 − final weight)) ÷ final weight. A class at 84% with a final worth 25% and a 90% target needs (90 − 84 × 0.75) ÷ 0.25 = 108% — impossible, which the planner says plainly instead of printing a number above 100 as if it were a plan.

The planner repeats that calculation for every class, so you can see where to spend revision time: the class that needs 92% deserves more hours than the one already secured or the one that needs 61%.

Three answers, and what to do with each

A target is secured when the required final is zero or below — even a 0% on the final keeps the grade, so that class needs only maintenance. A target is possible when the required final is between 0% and 100% — that number is the revision goal. A target is impossible when the required final exceeds 100% — no final score reaches it, so either lower the target or accept the highest achievable grade the planner shows.

• Secured: protect the grade, spend revision time elsewhere.
• Possible: the required score is the goal to revise toward.
• Impossible: re-target now, while there is still time to choose.

One final vs the whole finals week

Single-final calculators answer one class. Students actually sit several finals, and the binding constraint is total revision time, not any single score. Plan all classes together, rank them by required final score, and put the most hours where the gap between current grade and required final is largest — that is where effort changes outcomes.