My suggestions to build upon @kpfleming’s idea is to have a function via a plugin that outputs a readable summary with the above metrics. Perhaps with some custom options, it can have ‘tags’ for each metric so the summary can be worded differently depending on what the admin wishes (like placeholders?).
With the new theme customization features rolled out, I would think it can be called right into the theme. An analog with Wordpress is a template tag function() that can be called when needed.