Audio volume setting - how to find out what level or percentage it set to?

I love having the battery percentage show on my phone. Is there a way to find out what percentage or level the audio volume is set to? I asked because there are certain levels I find it worked well for certain podcasts or music, and I have to play around right now to get to that level. It would be great to know what it is in a numeric value. Any thoughts or suggestions appreciated?