Display pie chart with Grand total using HighChart plugin in JQuery

I try to populate chart when user click on button .. and chart is display like this now 

now the problem i want total i.e. as in image in red circle i write TOTAL : 3 .. 3 is beacuse 2 for MV and 1 for DSB so total is 3 I try this

this is the code which i try

success: function (result) {
            if (result !== null && result.length == 0) {
                $("#cont").hide();
                return;
            }
            strArray = result.d;
            var myarray = eval(strArray);
            $("#cont").show();
            $('#cont').highcharts({
                chart: {
                    borderColor: 'Grey',
                    borderWidth: 2,
                    type: 'pie',
                    options3d: {
                        enabled: true,
                        alpha: 45
                    }
                },
                title: {
                    text: 'Data1'
                },
              
            position: {
                    align: 'right',
                    verticalAlign: 'bottom',
                    x: 10,
                    y: -10
              },
            subtitle: {
                text: '3D Chart'
            },


            plotOptions: {
                pie: {
                    innerSize: 100,
                    depth: 45,
                    allowPointSelect: true,
                    cursor: 'pointer',
                    dataLabels: {
                        enabled: true,
                        format: '<b>{point.name}</b>: {point.y} %',
                       
                    },
                    showInLegend: true
                }
            },
                series: [{
                    name: 'Delivered amount',
                    data: myarray
                }]
            });
        },