To enable weighted grading for a class, specifying a "Weight" for at least one category from the class.

Setting a categories weight to "0" will disable the weight for that category and the category will then be shown as having a weight of "N/A".

Note that if weighted grading is enabled for a class, the category weights should total 100%. If the category weights do not total 100%, grading calculations will almost certainly be inaccurate.

To disable weighted grading for a class, ensure all categories have "N/A" listed for in the "Weight" column.