Hello,
I have been trying to configure a dashboard that calculates total cost of multiple projects inputted via Survey123. Projects are broken down in multiple categories. I can get each category to provide a sum for that category, however I cannot figure out how to display the total cost. I have tried putting a calculation field, but I don't think the formula is correct.

Here is a portion of the dashboard:

How would I configure a widget to give me the sum of category c, d and g?