js Number 转为 百分比

 <script type="text/javascript">
Number.prototype.toPercent = function(){
return (Math.round(this * 10000)/100).toFixed(2) + '%';
}
var A=0.35897, B=0.25554;
 alert([A, A.toPercent(), B, B.toPercent()].join('\n'));
</script>