jQuery Sparkline Pie Chart custom tooltip

HTML

<script src="http://omnipotent.net/jquery.sparkline/2.1/jquery.sparkline.js"></script>
<p>
Sparkline appears here: <span id="sparkline">6,3</span>
</p>
<script>
$(function() {
	$('#sparkline').sparkline('html', {
		type: 'pie', 
		offset:'-90',
		sliceColors:['#303030','#f2f2f2']
	});
});
</script>

JavaScript

// jsfiddle configured to load jQuery Sparkline 2.1
// http://omnipotent.net/jquery.sparkline/
// Values to render

// Draw a sparkline for the #sparkline element
$('#sparkline').sparkline('html', {
    type: "pie",
    offset: "-90",
    sliceColors: ['#303030','#f2f2f2'],
    // Customize the tooltip
    tooltipFormat: 'Available {{value}} - ({{percent.1}}%)'
});