Grading
Points gained
The difference the extra credit actually makes.
The Formula
gain = new grade - current grade
The difference the extra credit actually makes.
| Symbol | Meaning | Unit | Notes |
|---|---|---|---|
| gain | Points gained | percentage points | The percentage point improvement. |
| new grade | Updated grade | percent | The grade after extra credit. |
| current grade | Current grade | percent | The grade before extra credit. |
What Each Symbol Means
gainpercentage points
Points gained
The percentage point improvement.
new gradepercent
Updated grade
The grade after extra credit.
current gradepercent
Current grade
The grade before extra credit.
See It Worked With Real Numbers
A formula on its own does not tell you which number goes where. The how to calculate extra credit page applies this equation to a concrete case, shows every intermediate step, and names the mistakes that produce a wrong answer even when the algebra is right.
Where This Formula Appears
This equation is the working core of How To Calculate Extra Credit, filed under Education. Every number the guide produces comes from substituting into this one line.