HELP ME on my HUD

So … I’m creating a game, and it has two bars (for now), one of life and another of armor, I wanted to put the bar itself, I want the percentage to appear, I already made the bar, and it’s working , but I did not find any tutorial on how to do this with the percentage scheme. I wanted to do that: http: img13.deviantart.net/bc38/i/2012/226/3/f/fps_hud___need_help_with_some_finishing_touches__by_script9-d5b1cj4.png