How to make advanced health bar like in Black Desert Online?

Hi Guys.
Here is a link to the screenshot from Black Desert online game.

Please, pay attention to health bar. You can see the triangle and text box above it.

I can do so that the current health is displayed in progress bar and text box, its simple.
But how to make so that triangle and text above it placed in the right place?

I could not find a way, becuase i ask you. And sorry for my English.

how about creating a slider then parenting the text to it. then you set the slider value based on the progressbar.

Yes, finally i realized it with slider and text box.
The video below shows how to implement this.