Bug in Progressbar

[andyrockt]

I noticed that the progress bar is not filled in as a percentage of the entered value. Is it possible to adjust this or can you tell me how I can fix it myself?

On the demo page you can see it on the shortcodes page:
https://demo.getgrav.org/gateway-skeleton/pages/shortcodes
On the original theme it's working:
https://demo.rescuethemes.com/gateway/shortcodes/

Hope you can still help here, despite the long time.