Canvas uses Letter Grade Schemes to associate letter grades with a certain percentage range, and those ranges can be chosen and managed by instructors. If you haven’t made any changes yet, your Canvas courses will have a Default Final Column Grade Scheme enabled to work with the Total Column in your gradebook. This is known as the course grading scheme. The Default Final Column Grade Scheme is also attached to the “Final (Course Grade)” Assignment and gradebook column.
You can find out how to enable or not enable a course grading scheme on the page linked below, so you can choose whether or not your Total column also displays letter grades along with percentages. You can also find out how to hide or reveal the Total column from your students there. You may want to be able to use your own grading scheme, instead of the default one, as a course grading scheme, with various grade columns and assignments, or with the Final (Course Grade) Assignment and gradebook column. For more information and directions, refer to our Enable, Create, and Edit Letter Grading Schemes in Canvas page to access an eLearning screencast, Instructure Guides, and more.