<apex:page controller=”ChartController”>

   <apex:chart data=”{!data}” height=”400″ width=”500″>

       <apex:legend position=”left”/>

       <apex:axis type=”Numeric” position=”left” title=”Closed Won” grid=”true”

           fields=”data1,data2,data3″ dashSize=”2″>

           <apex:chartLabel/>

       </apex:axis>

       <apex:axis type=”Category” position=”bottom” fields=”name” title=”Stacked Bars”>

           <apex:chartLabel rotate=”315″/>

       </apex:axis>

       <apex:barSeries orientation=”vertical” axis=”left” stacked=”true”

           xField=”name”

           yField=”data1,data2,data3″

title=”MacDonald,Promas,Worle” />

   </apex:chart>        

</apex:page>

public class ChartController {

   // Return a list of data points for a chart

   public List<Data> getData() {

       List<Data> data = new List<Data>();

       data.add(new Data(‘Jan’, 30, 90, 55));

       data.add(new Data(‘Feb’, 44, 15, 65));

       data.add(new Data(‘Mar’, 25, 32, 75));

       data.add(new Data(‘Apr’, 74, 28, 85));

       data.add(new Data(‘May’, 65, 51, 95));

       data.add(new Data(‘Jun’, 33, 45, 99));

       data.add(new Data(‘Jul’, 92, 82, 60));

       data.add(new Data(‘Aug’, 87, 73, 45));

       data.add(new Data(‘Sep’, 34, 65, 55));

       data.add(new Data(‘Oct’, 78, 66, 56));

       data.add(new Data(‘Nov’, 80, 67, 53));

       data.add(new Data(‘Dec’, 17, 70, 70));

       return data;

   }

   // Wrapper class

   public class Data {

       public String name { get; set; }

       public Integer data1 { get; set; }

       public Integer data2 { get; set; }

       public Integer data3 { get; set; }

       public Data(String name, Integer data1, Integer data2, Integer data3) {

           this.name = name;

           this.data1 = data1;

           this.data2 = data2;

           this.data3 = data3;

       }

   }

}