Limit max value

Hi, I'm having little trouble with my code.

What i want to achive is, if value is greater then 66, value need to be 66.

Field is formated as percentage.

Here is what I got so far:

var HP = this.getField("HP").value;
var P = this.getField("Protection").value;
var W = this.getField("Ward").value;
var result = 1-(HP+W)/(HP+W+P);
if(P == 0){
event.value = 0;
}else if(event.value > 66){
event.value = 66;
} else event.value = result;

Everything is working as intended except it doesn't show 66 if value is greater.