Rubric grade calculation

The rubric normalised score (i.e. basically a percentage grade) is calculated by adding all of the scores given (minus the minimum score possible) over the maximum grades (minus the minimum grades to achieve a fraction which is then converted into a percentage. 

For example, if you had an assessment form with two criteria, which both have four levels. The Trainer chooses the level with 2 points for the first criterion and 3 points for the second criterion. Then the normalised score is:

This calculation may be different from how you intuitively use rubric. For example, if the Trainer in the example chose both levels with 1 point, the plain sum would be 2 points. But that is actually the lowest possible score so it maps to the grade 0 in Totara. To avoid confusion, it is recommended to always include a level with 0 points in the rubric definition.