How do I fix width size for sprite?s

hi to every one, i would like to do this

every time i click i remove -10 to sprite width

the sprite is a life bar, it is possible to fix/force a MAXIMUM SIZE?

my life bar grow every time my variable xp grow but i would like to have allways the same width, not growing with the xp difficulty.

what i need is a life bar who become harder to reduce by clicking, like in tapeventures

Convert the health to a percentage of total, then multiply that with your desired life bar display width.

CurrentHealth/TotalHealth*DisplayWidth

Thanks, do you have a capx with the formula?

https://www.dropbox.com/s/2kqyjcxe1dd67 ... .capx?dl=0

I would appreciate if you made an attempt before asking me to make it for you, or at least ask about what you didn't understand.