List all graded assignments, quizzes, tests, projects, and participation scores
Note the points earned for each item
Note the total points possible for each item
Add all points earned together
Add all points possible together
Divide total points earned by total points possible
Multiply the result by 100 to get your percentage grade
If your class uses weighted categories, multiply each category average by its weight
Add all weighted category scores together
Compare the final percentage to your grading scale to find the letter grade