title: Converting Excel cell to percentage using epplus
body: <p>I would like to convert the value in to 2 decimal places. I am using <strong>EPPlus</strong> 
  if the value is <strong>66.6666667</strong> and I would like to show it as <strong>66.66%</strong> 
  I tried the following code but its not working.          </p>
  
  <pre><code>   foreach (var dc in dateColumns)
     {
         sheet.Cells[2, dc, rowCount + 1, dc].Style.Numberformat.Format = "###,##%";
     }
  </code></pre>
  
  <p>Please help.</p>