以下のガイドはまだ日本語に翻訳されていないため、英語で表示しています。計算機自体はすべて日本語に対応しています。
この計算機の使い方
- Enter your current grade in the class (before the final).
- Enter the overall grade you want.
- Enter the final exam's weight as a percentage of the course grade.
計算式
Your course grade is a weighted mix of your current grade and the final exam. Rearranging gives the score you need.
Final needed = (target − current × (1 − w)) / w
w = final exam weight ÷ 100
Example
- Current grade 84%, target 90%, final worth 25%.
- Needed = (90 − 84 × 0.75) / 0.25 = (90 − 63) / 0.25 = 108%.
- That's above 100%, so a 90% isn't possible without extra credit. The best possible grade is 88%.
よくある質問
What if the result is over 100%?
The target isn't reachable through the final alone unless extra credit is available. The calculator also shows the highest grade you can still get.
What if it's negative?
You've already secured the target grade. Even a zero on the final would keep you at or above it (though check your course's minimum-score rules).
My course uses points, not percentages.
Convert first: your current grade is points earned ÷ points possible so far, and the final's weight is its points ÷ total course points.