[Chartjs]-How to add percentage value to legend field in pie chart using chart.js

You have to alter the legendTemplate attribute, to something like this:

legendTemplate : "<ul class=\"<%=name.toLowerCase()%>-legend\"><% for (var i=0; i<datasets.length; i++){%><li><span style=\"background-color:<%=datasets[i].fillColor%>\"></span><%if(datasets[i].label){%><%=datasets[i].label%> : <%=datasets[i].points[datasets[i].points.length-1].value%><%}%></li><%}%></ul>"