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Use CurrencyFormatter and NumberFormatter to format label for Chart

<?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" >   <mx:TraceTarget/>     <mx:Script>            import mx.events.CollectionEvent;       import mx.messaging.messages.AsyncMessage;       import mx.messaging.events.MessageEvent;       import mx.collections.ArrayCollection;       [Bindable]       private var acSales:ArrayCollection = new ArrayCollection(         [{name:"A", sales:5.00},          {name:"B", sales:8.00},          {name:"C", sales:2.00}]);                 private function formatLabel(data:Object, field:String, index:Number, percentValue:Number):String       {         return data.name + "\n" + cf.format(data.sales) + "\n(" + nf.format(percentValue) + "%)";       }      </mx:Script>      <mx:CurrencyFormatter id="cf" precision="2"/>   <mx:NumberFormatter id="nf" precision="1"/>         <mx:PieChart id="chart" dataProvider="{acSales}" width="100%" height="100%">     <mx:series>       <mx:PieSeries field="sales" explodeRadius=".05"         labelPosition="callout" labelFunction="formatLabel"         fontSize="12" fontWeight="bold"/>     </mx:series>   </mx:PieChart>    </mx:Application>