Weighted Averages

I use weighted grading but can't seem to get it working in iDoceo 3.1. I used to be able to set the percentage value for each category (e.g., 20% reading, 25% writing, etc.), but I can't seem to do that anymore. I have a subtotal column with Addition: percentage over total addition calculation options, and then I have a total grade column with the same calculation setting but adding up the subtotal columns for each category. I want to be able to shift the overall weight of the categories, but the only option is to add (+) or subtract (-) a column. Any ideas?

Hello normanremer,
In order to add a weight to category you need to use the 'Calculation' editor, it works the same way as our previous 3.0 version. If still can't sort it out, do let me know. A screenshot with the calculation arrows would help a lot!