High charts showing the composition of count as to

I have a chart as below.

http://jsfiddle.net/Mn6sB/4/

$(function () {
        $('#chartContainer').highcharts({
            chart: {
                renderTo: 'chartContainer',
                type: 'column',
                marginTop:50,
                spacingBottom: 5,
                marginBottom: 100
            },
            credits: {
                  enabled: false
              },
            title: {
                text: 'Product health',

            },
            subtitle: {
                text: ''
            },
            xAxis: {
                type: 'datetime',
                minTickInterval: 24 * 3600 * 1000,
                dateTimeLabelFormats: { 
                    month: '%e %b',
                    year: '%b'
                }
            },
            yAxis: {
                min: 0,
                max:100,
                tickInterval:10,
                title: {
                    text: 'Passrate'
                },
            },
            legend: {
                            title: {
                                text: '<span style="font-size: 9px; color: #666; font-weight: normal">To toggle between different branches click on the branch names in the legend</span>',
                                style: {
                                    fontStyle: 'italic'
                                }
                            },
                            layout: 'horizontal',
                        },
            tooltip: {
                formatter: function() {
                         return 'Branch: <b>'+ this.series.name +
                            '</b><br/>Date: '+ Highcharts.dateFormat('%e %b',this.x)+
                                '</b><br/>Pass rate: '+ this.y +'%';
                }
            },
            plotOptions: {
                spline: {
                    dataLabels: {
                        enabled: 'True'
                    },
                    enableMouseTracking: false
                }
            },
            series: [{name: 'BranchX', data:[[Date.UTC(2013,9,3),88],[Date.UTC(2013,9,4),100],[Date.UTC(2013,9,5),100],[Date.UTC(2013,9,6),100],[Date.UTC(2013,9,7),100],[Date.UTC(2013,9,8),100],[Date.UTC(2013,9,9),100],]},{name: 'BranchY', data:[[Date.UTC(2013,9,3),75.27],[Date.UTC(2013,9,4),83.33],[Date.UTC(2013,9,5),100],[Date.UTC(2013,9,6),63.64],[Date.UTC(2013,9,7),98.31],[Date.UTC(2013,9,8),98.9],[Date.UTC(2013,9,9),64.71],]},]
        });
    });

This is a column graph showing the pass percentage.

I wanted to pass the numbers (passcount, total count) which were used to calculate the % vlaues, so that I can show them as tooltip. Is is possible?

yes this is possible and simple

pass the addl numbers in the series along with data access them from tool tip as shown below from the formatter

tooltip:{
 formatter: function() {
  this.point.options.passCount
  this.point.options.total
 }
}

series:[{
 data: [{
  x: timestamp,
  y: value,
  passCount: someVlaue,
  totalCount: someValue
 },{
  x: timestamp,
  y: value,
  passCount: someVlaue,
  totalCount: someValue
 },{
  x: timestamp,
  y: value,
  passCount: someVlaue,
  totalCount: someValue
 }]
}]