What do I have to make on the final to get a Z? Guess your total quiz points out of 100 based on the quizzes +projects you have. Quiz 1 is out of 25 points and (quiz 2 +project 1) is out of 25 points. Quiz 3 + project 3 is out of 25 points. Project 2 was a bonus of 7 points. If you have done all homework and received at least 80%, give yourself 50 points for homework. Add your two best exam scores. This completes your total I will call T. To get a C for example you need 420 points out of the 600. 420-T is the balance you still need out of the potential 250 from the final. (The final is 150 and also replaces a 100 point exam) (420-T)/250 is the %-age you need on the final to get a C. If you want to see what you need for a B, add 60 to 420-T and divide by 250.