angularjs - check box click event or change event is not working in angular js -

check box click event or change event not working in angular js can tell problem how fix

in html      <div class="checkbox">                     <input type="checkbox"                    id="chkfinancial"                      data-ng-model ="finance"                     data-ng-click="checkchange();"/>                         <label >                 test checkbox              </label>             </div><br/> 

in controller

    $scope.checkchange = function() { /*if($scope.finance==true){  $scope.finance=false;   } else {  $scope.finance=true;    }*/ alert($scope.finance);  };   

thanks