Very simple question (percentage preloader)

programming flash
1

Hi all,

please could someone rewrite my code, so that the preloader will not show loaded bytes but percentage?
Thank you for your help.

[color=darkslateblue]btn.onRelease = function() {
loadMovie(“clipC.swf”, “_level2”);
};

this.onEnterFrame = function() {
numBytes.text = _level2.getBytesLoaded()+"; "+_level2.getBytesTotal();
};[/color]