health Script

hey i have a question aboute the health bar from the fpsplayer Script is it possible to let the bar go to max 15% becouse now it goes from 100/1 bit it must be so that its like 100/15 than die

 function UpdateGUI () {
     // Update health gui
     // The health gui is rendered using a overlay texture which is scaled down based on health
     // - Calculate fraction of how much health we have left (0...1)
     var healthFraction = Mathf.Clamp01(hitPoints / maximumHitPoints);
 
     // - Adjust maximum pixel inset based on it
     healthGUI.pixelInset.xMax = healthGUI.pixelInset.xMin + healthGUIWidth * healthFraction;

Thanks