1. Export all the assignments with grades via the Gradebook Print out found via
- Gradebook Print out
2. Create a Letter Grade Scale as per Letter Grade Scale
3. Remove all assignments from the Gradebook as per How can I change my grade book setup?
4. Add the Letter Grade Scale to the Assignment Types in the Gradebook
5. Re add the Assignments as per How can I change my grade book setup? and re input the Grades as Letter Grades