title: Total of values in HighCharts Pie Chart
body: <p>Is there a way to get a grand total of values in legend or any other place in pie charts?
   Here is the code with legend ,but instead of adding the total of percentage,i want to display the total of values..</p>
  
  <pre><code>$(function () {
      var chart = new Highcharts.Chart({
  
          chart: {
              renderTo: 'container',
              type: 'pie',
              width: 500,
              borderWidth: 2
          },
  
          title: {
              text: 'demo'
          },
  
          credits: {
              enabled: false
          },
  
          legend: {
  
              layout: 'vertical',
              align: 'right',
              verticalAlign: 'top',
              y: 30,
              labelFormat: '{name} ({percentage:.1f}%)',
              navigation: {
                  activeColor: '#3E576F',
                  animation: true,
                  arrowSize: 12,
                  inactiveColor: '#CCC',
                  style: {
                      fontWeight: 'bold',
                      color: '#333',
                      fontSize: '12px'    
                  }
              }
          },
      tooltip: {
              formatter: function() {
                  return Highcharts.numberFormat(this.percentage, 2) + '%&lt;br /&gt;' + '&lt;b&gt;' + this.point.name + '&lt;/b&gt;&lt;br /&gt;Rs.: ' + Highcharts.numberFormat(this.y, 2);
              }
          },
          series: [{
              data: (function () {
                  var names = 'Ari,Bjartur,Bogi,Bragi,Dánjal,Dávur,Eli,Emil,Fróði,Hákun,Hanus,Hjalti,Ísakur,' +
                      'Johan,Jóhan,Julian,Kristian,Leon,Levi,Magnus,Martin,Mattias,Mikkjal,Nóa,Óli,Pauli,Petur,Rói,Sveinur,Teitur',
                      arr = [];
  
                  Highcharts.each(names.split(','), function (name) {
                      arr.push({
                          name: name,
                          y: Math.round(Math.random() * 100)
                      });
                  });
  
                  return arr;
              }()),
              showInLegend: true
          }]
  
      });
  });
  </code></pre>