title: format labelText with amCharts
body: <p>Iam trying to format the numbers with amCharts.
  I would like to format the numbers with a precision of 2 but when I insert:</p>
  
  <pre><code>graph.numberFormatter = {precision:2, decimalSeparator:'.', thousandsSeparator:','};
  </code></pre>
  
  <p>it only formats the number from the tooltip and as you can see on the image not all numbers are formatted. </p>
  
  <p><img src="https://i.stack.imgur.com/PnE83.png" alt="am stacked column chart"></p>
  
  <pre><code>graph.labelText = "[[coding]] €";
  </code></pre>
  
  <p>How can I format the labelText?</p>
  
  <p>Thanks!</p>