I have defined two grade categories in a course, both set to Aggregation=Natural.
For the course total I want to define a formula that only depends on the grade percentages of the two categories. How does this work? Directly using the IDs of the two category totals of course only yields the grade sums.
I want to reuse the course later, with different number of assignments in those categories, and different point maximum in some assignments. Therefore I want to avoid using a formula with hard-coded numbers (like the number of assignments or the maximal grade sums per category).