This test requires a course with a gradebook containing at least one participant and at least one grade item.

1. Log in as a teacher and go to the gradebook.
2. Go to the letters page, either via the dropdown menu or via Grade administration > Letters in the administration block and click the link to edit grade letters.
3. Edit the boundary for a C to be ≥ 73.25 and click the 'Save changes' button.
4. Check that the boundary is saved as 73.25.
5. Go to the course grade settings page and set letter grades to show in the user report, then click the 'Save changes' button.
6. Go to the single view page and select a user.
7. Change a grade to 73.2.
8. Check in the user report that the grade letter is C-.
9. Repeat the last few steps, changing the grade to 73.25 and 73.3 and checking that in both cases the grade letter shown in the user report is C.