How do I have my battery power display as or on a dial

I am new to this and I LOVE it. But I am having trouble trying to get past the basics. I am creating a watch face and within the watch face I am trying to create a dial to show my battery power. Right now all I can do is display my battery power with a percentage or fraction. I believe I have to create a dial and then add a tag but I can’t figure it out. Please help. I have a link to an example right here. Thanks!

UPDATE: I actually figured it out, sort of. I got my dial working for the power display of my watch. I am trying to do the same thing but show power display for my phone but it’s not working properly. Not sure what I did wrong. I am using the same formula for the phone display as I did for my watch, substituting only #BLN# for #PBN# but it’s not working. Right now my phone battery level on my dial is saving I am around 10% left on my phone when in actuality I have near 70%. The watch dial display is spot on though.