How can I avoid calculate a N/A answer as a response?
In my scenario, I have 5 attributes where 4 are valid and 1 is N/A.
When I create the widget with the custom metric, it"s processing the average considering the N/A as a valid response, I need to avoid this.

If I have 60 responses where 15 are N/A, my average should be the totalScore/45 and not totalScore/60.