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HTML 

              
                <html>
     
  <body ng-app>
    

 <form ng-app ng-controller="OrderFormController">

	<h1>Services</h1>

	<ul>
		<!-- Loop through the services array, assign a click handler, and set or
			remove the "active" css class if needed -->
		<li ng-repeat="service in services" ng-click="toggleActive(service)" ng-class="{active:service.active}">
			<!-- Notice the use of the currency filter, it will format the price -->
			{{service.name}} <span>{{service.price | currency}}</span>
		</li>
	</ul>

	<div class="total">
		<!-- Calculate the total price of all chosen services. Format it as currency. -->
		Total: <span>{{total() | currency}}</span>
	</div>

</form>
    
    
   <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.2.21/angular.min.js"></script>
    
  </body>
</html>
!

CSS 

              
                *{
	margin:0;
	padding:0;
}

body{
	font:15px/1.3 'Open Sans', sans-serif;
	color: #5e5b64;
	text-align:center;
}

a, a:visited {
	outline:none;
	color:#389dc1;
}

a:hover{
	text-decoration:none;
}

section, footer, header, aside, nav{
	display: block;
}

/*-------------------------
	The order form
--------------------------*/

form{
	background-color: #61a1bc;
	border-radius: 2px;
	box-shadow: 0 1px 1px #ccc;
	width: 400px;
	padding: 35px 60px;
	margin: 50px auto;
}

form h1{
	color:#fff;
	font-size:64px;
	font-family:'Cookie', cursive;
	font-weight: normal;
	line-height:1;
	text-shadow:0 3px 0 rgba(0,0,0,0.1);
}

form ul{
	list-style:none;
	color:#fff;
	font-size:20px;
	font-weight:bold;
	text-align: left;
	margin:20px 0 15px;
}

form ul li{
	padding:20px 30px;
	background-color:#e35885;
	margin-bottom:8px;
	box-shadow:0 1px 1px rgba(0,0,0,0.1);
	cursor:pointer;
}

form ul li span{
	float:right;
}

form ul li.active{
	background-color:#8ec16d;
}

div.total{
	border-top:1px solid rgba(255,255,255,0.5);
	padding:15px 30px;
	font-size:20px;
	font-weight:bold;
	text-align: left;
	color:#fff;
}

div.total span{
	float:right;
}
!

JS 

              
                function OrderFormController($scope){

	// Define the model properties. The view will loop
	// through the services array and genreate a li
	// element for every one of its items.

	$scope.services = [
		{
			name: 'Web Development',
			price: 300,
			active:true
		},{
			name: 'Design',
			price: 400,
			active:false
		},{
			name: 'Integration',
			price: 250,
			active:false
		},{
			name: 'Training',
			price: 220,
			active:false
		}
	];

	$scope.toggleActive = function(s){
		s.active = !s.active;
	};

	// Helper method for calculating the total price

	$scope.total = function(){

		var total = 0;

		// Use the angular forEach helper method to
		// loop through the services array:

		angular.forEach($scope.services, function(s){
			if (s.active){
				total+= s.price;
			}
		});

		return total;
	};
}
!
999px

Console