title: ASP chart StackedColumn100 add percent symbol (%) on values
body: <p>I have this chart (using Chart control build-in on .NET):</p>
  
  <p><a href="https://i.stack.imgur.com/zOzmp.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/zOzmp.png" alt="enter image description here"></a></p>
  
  <p>How do I add percent sign (%) behind of all values (for example 44 => 44%, 56 => 56% and so on)</p>
  
  <hr>
  
  <p><strong>Edit</strong> (after tried <code>jstreet</code>'s sugesstions in comment): StackedColumn100 chart so values are already percentages.</p>
  
  <p>Tried <code>&lt;asp:Series Label="#VAL%"&gt;</code>, got this: (notice that the 0 values are showing up which I don't want, I used these codes to hide those 0 values initially):</p>
  
  <pre><code>protected void RequestChart_Customize(object sender, EventArgs e)
          {
              //hide label value if zero
              foreach (System.Web.UI.DataVisualization.Charting.Series series in RequestChart.Series)
              {
                  foreach (System.Web.UI.DataVisualization.Charting.DataPoint point in series.Points)
                  {
                      if (point.YValues.Length &gt; 0 &amp;&amp; (double)point.YValues.GetValue(0) == 0)
                      {
                          point.IsValueShownAsLabel = false;
                      }
                  }
              }
          }
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/VmuF7.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/VmuF7.png" alt="enter image description here"></a></p>
  
  <p>Tried <code>&lt;asp:Series LabelFormat="P2"&gt;</code>, got this </p>
  
  <p><a href="https://i.stack.imgur.com/U50nR.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/U50nR.png" alt="enter image description here"></a></p>