How to Use the Extra Credit
- Enter current earned points and total points possible.
- Enter extra credit points awarded.
- See your new boosted percentage and grade rise.
Mathematical Formula Behind Extra Credit
Adds bonus points to earned points without increasing the denominator.
G_{\text{new}} = \frac{\text{Earned Points} + \text{Bonus Points}}{\text{Total Points Possible}} \times 100Step-by-Step Worked Example
Scenario: Current score 420/500 (84%). You complete a 20-point extra credit project.
(420 + 20) / 500 = 440 / 500 = 88.0%.
Outcome: Grade jumps from 84.0% (B) to 88.0% (B+), an entire letter tier increase.