The easiest way to set up percent based (or weighted) grading for your Canvas course is to create groups on the Assignments page. Assignment groups are used to show how the different assignments in your course are weighted differently.

For example, if a course had the following grading calculation listed on the syllabus:

Assignment Group	Percentage of Final Grade
Homework	30%
Weekly Quizzes	30%
Exams	30%
Attendance	10%
TOTAL	100%

In Canvas, the Assignments page would have four weight groups:

Assignments tab on the Weighted Groups page. The weight groups are: Homework, Weekly Quizzes, Exams, and Attendance.

View the following tutorials to add weighted assignment groups to your course:

How do I add an assignment group in a course?(links to external site)
How do I weight the final course grade based on assignment groups? (links to external site)

Additional Resource:

Understanding how grades are calculated when using Assignment Groups (links to external site) Blog Post from Kona Jones on the Canvas Community