And suddenly everything fell into place...
Thanks <x-zendesk-user data-user-name="Sven Bergur Jensen">372625463852</x-zendesk-user>, that little input put me on the right track for this one, and here we go...
https://drive.google.com/file/d/1lkNV6TUL5UTRDzthsGJKWhOo0zwGkXYo/view?usp=sharing
Basically, the target % value is stored in the text field in the top left.
While the visual logic takes the target, divide by 100 to get the 1... Take the value of 1, multiply that with the X position (can be y for that matter) of the little quad. Start the quad at x-position 0, animate it over to 100, and round the output from the multiplier, concatenate with a %, and you got the % value animating in... You can also change the target % in the top left to whatever you'd like, and it will still work just fine.
Then you can use the Xpression U tutorial on bars and pie charts in order to get a result with a counting %, animating on top of a bar growing from 0 to a max height set in Visual Logic.
(For those who download the package, you can see the animation example in the animation controller called "rising percentage").
Have fun folks!
#XPression