title: Add Literal Percent Sign (%) to my calculation
body: <p>I want to add a <code>%</code> sign to the derived values from the example below, is it possible? Do I have to somehow use <code>CAST(n)</code>?</p>
  
  <pre><code>ROUND(qy.TotalUnits/qy.TotalCalls *100) AS "Total Conv" +'%'
  </code></pre>