How do you use math functions within Workflows?

I have a site intercept survey that generates a daily summary (posted as a MS Teams message) of feedback received on the site during the previous day.
Using the "Calculate Metrics" task within Workflows, I can easily generate the "total number of responses" and "total number of positive responses." However, when I try to calculate a "positive percentage" I get stuck. Is it possible to use math functions and format the output as a percentage somewhere in the Workflow so that I can display it in the Teams message?