google chart extra customization

Hii , 

I am using google chart's stacked bar chart.I did many customization to achive my functionality.But few things i want.

Please find my below google chart example

<pre>&lt;html&gt;
  &lt;head&gt;
    &lt;script type="text/javascript" src="https://www.google.com/jsapi"&gt;&lt;/script&gt;
    &lt;script type="text/javascript"&gt;

	var wrapper;
	function drawVisualization() {
	
		// Create and populate the data table.
		var data = new google.visualization.DataTable();
		data.addColumn('string', 'department');
		data.addColumn('number', 'Draft');
		data.addColumn('number', 'InProgress');
		data.addColumn('number', 'Completed');

		data.addRows([
			['IT', {v:18, f:'18%'}, {v:40, f:'40%'}, {v:42, f:'42%'}],
			['Administrative', {v:40, f:'40%'}, {v:30, f:'30%'}, {v:30, f:'30%'}],
			['Sales', {v:35, f:'35%'}, {v:10, f:'10%'}, {v:55, f:'55%'}],
			['Sales', {v:15.5, f:'15.5%'}, {v:65, f:'65%'}, {v:19.5, f:'19.5%'}]
			/*
			['Administrative', 40, 30, 30],
			['Sale', 35, 10, 55],
			['Accounts', 10, 80, 10]
			*/
		]);	
	
		
		//wrapper for graph
		wrapper = new google.visualization.BarChart(document.getElementById('visualization'));
		
		//attach event listeners
		google.visualization.events.addListener(wrapper, 'select', onSelectHandler);

		/*
		var formatter = new google.visualization.NumberFormat(
		  {negativeColor: 'red', suffix : "%"});
		formatter.format(data, 2);
		*/
		
		//add view for data
		var view = new google.visualization.DataView(data);
		view.setColumns([0, 
						1, {
							calc: "stringify",
							sourceColumn: 1,
							type: "string",
							role: "annotation"
						}, 2, {
							calc: "stringify",
							sourceColumn: 2,
							type: "string",
							role: "annotation"
						}, 3, {
							calc: "stringify",
							sourceColumn: 3,
							type: "string",
							role: "annotation",
						}
						]);
		
		//set options for graph
		var options = {
			title:"Objective status report",
			isStacked: true,

			width:1000, height:400,
			vAxis: {title: ""},
			hAxis: {title: ""},

			//hide tool tip
			'tooltip' : {
			  trigger: 'none'
			},
			
			
			hAxis: {
				viewWindow: {
					min: 0,
					max: 100
				},
				ticks: [{v:0, f:'0%'},{v:10, f:'10%'},{v:20, f:'20%'},{v:30, f:'30%'},
						{v:40, f:'40%'}, {v:50, f:'50%'}, {v:60, f:'60%'}, {v:70, f:'70%'},
						{v:80, f:'80%'}, {v:90, f:'90%'}, {v:100, f:'100%'}]
						
			},

			//set colour for series
			series: [{color: '#F66E25', visibleInLegend: true}, { color : '#2579F6', visibleInLegend: true}, {color: '#9946F7', visibleInLegend: true}]
		};		
		
		//draw graph
		wrapper.draw(view, options);

	
		function onSelectHandler(){
			alert("hi there");
		}
		

	}
	
    google.load('visualization', '1', {packages: ['corechart']});
	google.setOnLoadCallback(drawVisualization);

/*	
function drawVisualization_bk() {
  // Create and populate the data table.
  var data = new google.visualization.DataTable();
  data.addColumn('string', 'department');
  data.addColumn('number', 'Draft');
  data.addColumn('number', 'InProgress');
  data.addColumn('number', 'Completed');

  data.addRows([
    ['IT', 10, 40, 50],
    ['Administrative', 40, 30, 30],
    ['Sale', 35, 10, 55],
    ['Accounts', 10, 80, 10]
  ]);
  
  // Create and draw the visualization.
  new google.visualization.BarChart(document.getElementById('visualization')).
  draw(data,
       {title:"Objective status report",
        isStacked: true,
        width:1000, height:400,
        vAxis: {title: ""},
        hAxis: {title: ""},
		'tooltip' : {
		  trigger: 'none'
		},

		hAxis: {
			viewWindow: {
				min: 0,
				max: 100
			},
			//ticks: [0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100] // display labels every 25
			ticks: [{v:0, f:'0%'},{v:10, f:'10%'},{v:20, f:'20%'},{v:30, f:'30%'},
					{v:40, f:'40%'}, {v:50, f:'50%'}, {v:60, f:'60%'}, {v:70, f:'70%'},
					{v:80, f:'80%'}, {v:90, f:'90%'}, {v:100, f:'100%'}]
					
		}		

		}
      
	  );
}
*/
    &lt;/script&gt;
  &lt;/head&gt;
  &lt;body&gt;
    &lt;div id="visualization"&gt;&lt;/div&gt;
  &lt;/body&gt;
&lt;/html&gt;</pre>


What i want is , 

1. the value present inside each bar chart must be in center 

2. The total of each each inside value should come at the end of each bar 

Please suggest