I have a survey where a person marks whether they observed note taking in a classroom walk through. If they select yes it has them select the types of note taking they observed. This is a multi select question.

I need to create a metric that shows the percent of each type of note taking that was observed for any walk through that was done. The problem I am having is that I want the percentage to be broken down by school.

I am sure this can be done, but I can’t figure out how to get it to work. I have tried creating a custom metric and also tried using a subset ratio. Can someone help me with how to set up the subset ratio and/or the custom metric.

Thank you.