$(document).scroll(function (e) {
var scrollAmount = $(window).scrollTop();
var documentHeight = $(document).height();
var windowHeight = $(window).height();
var scrollPercent = (scrollAmount / (documentHeight - windowHeight)) * 100;
var roundScroll = Math.round(scrollPercent);
// For scrollbar 2
$(".scrollBar2").css("height", scrollPercent + "%");
$(".scrollBar2 span").text(roundScroll);
});