Imported grades must match one of the fixed list of valid grades - 100, 90, 80, 75, 70, 66.666, 60, 50, 40, 33.333, 30, 25, 20, 16.666, 14.2857, 12.5, 11.111, 10, 5, 0 (also negative values). If not, there are two options:

*  Error if grade not listed - If a question contains any grades not found in the list an error is displayed and that question will not be imported
* Nearest grade if not listed - If a grade is found that does not match a value in the list, the grade is changed to the closest matching value in the list 