How to use: Enter the number of formative assignments into the "Formative" box, the total summatives into the "Summative" box, then put your grade as a percentage into the "your class grade" box, and put the score you want to test into the "Your test grade" box. Then, check the box if the assignment is a summative, do not check the box if it is a formative. After that, click the calculate button. This calculator will show you how a grade on either a formative or summative assignment will affect your class grade. For example: you have 3 formatives, 8 summatives, and an 88% in a class. You have a summative coming up, and you want to see how a 70% would affect your grade. This calculator tells you how the 70% would affect your grade.
Disclaimer: This calculator is not 100% accurate, but it will always be within +/- 3.25% of the correct grade.