jQuery Funnel Charts & Graphs

window.onload = function () {

var options = {
	animationEnabled: true,
	theme: "light2", //"light1", "light2", "dark1", "dark2"
	title: {
		text: "Sales Analysis - March 2017"
	},
	data: [{
		type: "funnel",
		toolTipContent: "<b>{label}</b>: {y} <b>({percentage}%)</b>",
		indexLabel: "{label} ({percentage}%)",
		dataPoints: [
			{ y: 1800, label: "Leads" },
			{ y: 1552, label: "Initial Communication" },
			{ y: 1320, label: "Customer Evaluation" },
			{ y: 885, label: "Negotiation" },
			{ y: 678, label: "Order Received" },
			{ y: 617, label: "Payment" }
		]
	}]
};
calculatePercentage();
$("#chartContainer").CanvasJSChart(options);

function calculatePercentage() {
	var dataPoint = options.data[0].dataPoints;
	var total = dataPoint[0].y;
	for (var i = 0; i < dataPoint.length; i++) {
		if (i == 0) {
			options.data[0].dataPoints[i].percentage = 100;
		} else {
			options.data[0].dataPoints[i].percentage = ((dataPoint[i].y / total) * 100).toFixed(2);
		}
	}
}

}