Presenting selling statistics for multiple tags per each sold item in mobile application

I am writing application mobile (React native) application that lists items that users buy and sell. Each item can be tagged with some tags. I want to present some statistics statistics like:

• profit per each tag,
• items sold per each tag,
• etc.

so user can see what are me most popular things user sells, but don't know how to do it properly due to this multiple tags to each item relation.

What are possible ways of presenting tag statistics on mobile application?