title: Overdue by -10 which means overdue by 10 minutes. Swap the '-10' to overdue by 10 minutes
body: <pre><code>CASE WHEN Color LIKE '%RED%' THEN (10 - (DATEDIFF(MINUTE,Calltime,GETDATE()))) 
  </code></pre>
  <p>Sometimes might give a -10 value. My question is when I get a value &lt;0, how can I change that value to 10 minutes overdue.</p>