title: Message Box if cell exceeds another cell
body: <p>What would be the best way to write a VBA code to have a message box pop up if the value in one cell is less than or greater than another cell - and then display the difference? </p>
  
  <p>Column N contains total appts (manual input)</p>
  
  <p>Column R contains total results (formula generated)</p>
  
  <p>If the cell in column R after calculated is less than or greater than the cell in column N the message box would pop up and say Total results is less than appts by # or Total results is greater than appts by #.</p>