Scores in a repeatable event

Hi all,

We have built an App for strengthening health provider competencies through clinical mentorship. The app consists of one repeatable form (can be filled several times), which is a checklist of yes/no questions. We want to calculate the percentage of each individual event. i.e., Number of yes responses divided by (number of yes + no responses) X 100. E,g If Provider A had 55% in the first visit, 76% in the second visit and 80% in the third visit, we would like to be able list these percentages per provider in the report.

How can we achieve this?