How do I make a bar that changes width

While I'm pressing a button it keeps adding 15 every 0,0001 seconds to a variable XYZ. I want to match StrengthBar's Width to this value, but I need to do it in % since the Strength will have higher values almost all the time and this bar can't grow inifinitly.

To sum up, I need to take the strength value (variable) and make the StrengthBar grow without exceeding the value 209.821.

Could some help me please?

hope it helps

I've already made it, but thank you for your help.

I did this

If ShotStrength <= 7000

ShotPowerBar.MAXWidth*ShotStrength/ShotStrengthMAX

This way I always find the % of my max power and then I multiply it to the max of my width bar

you're welcome