title: Highcharts: Show data label at top of column graph
body: <p>I have the data that I want to display, but as a tooltip, here: <a href="http://jsfiddle.net/9rds9avr/" rel="nofollow">http://jsfiddle.net/9rds9avr/</a>. </p>
  
  <pre><code>  formatter: function () {
                          if (this.points[1].y &lt;= this.points[0].y) {
                              var s = this.points[0].y - this.points[1].y;
  
                          } else {
                              var s = this.points[1].y - this.points[0].y;
                              s = '-' + s;
                          }
                          return s;
                      }
  </code></pre>
  
  <p>Note that it displays the difference between 2 series at a specific point.</p>
  
  <p>I want this displayed at the top of the column, like the percentage data labels shown in this stacked chart example: <a href="http://jsfiddle.net/sbochan/L02awbfe/7/" rel="nofollow">http://jsfiddle.net/sbochan/L02awbfe/7/</a>. </p>
  
  <p>How do I turn my tooltip into a datalabel? Do I need to set up a datalabel for each series?</p>