title: Highcharts: Format all numbers with comma?
body: <p>I'm using Highcharts and I want to format all numbers showed anywhere in the chart (tooltips, axis labels...) with comma-separated thousands.</p>
  
  <p>Otherwise, the default tooltips and labels are great, and i want to keep them exactly the same. </p>
  
  <p>For example, in this chart, the number should be <code>2,581,326.31</code> but otherwise exactly the same. </p>
  
  <p><img src="https://i.stack.imgur.com/0MXdO.png" alt="enter image description here"></p>
  
  <p>How can I do this?</p>
  
  <p>I tried adding:</p>
  
  <pre><code>    tooltip: {
          pointFormat: "{point.y:,.0f}"
      }
  </code></pre>
  
  <p>But this got rid of the nice circle and series label in the tooltip - I'd like to keep that. And ideally I'd prefer to use a single option to set global number formatting, across the whole chart. </p>