We're running Moodle 2.4+
I have a gradebook not calculating totals. I'm using weighted means of grades, with four weighted categories. Originally, there was a fifth category for extra credit (with 0 weight). We discovered the extra credit was not being factored into the final grade (it WAS showing before I started working on it!).
What I've done:
1) moved the extra credit into the homework category (each extra credit item is marked extra credit).
2) changed the aggregation to each category to Sum (used to Simple Weighted Means of Grade)
3) tried the "hide/unhide" in the total (this used was a trick with former versions of gradebook).
4) confirmed that we're aggregated only non-empty grades, and the course setting is set to show totals excluding hidden items
I've also experimented with hiding the extra credit items. I just cannot seem to figure out WHERE the course total has gone! Any suggestions would be greatly appreciated!
Following is a two-part screen shot of the Full View of the gradebook.