title: XAML: How do I append a percent symbol to a bound label value?
body: <p>I have a label bound to the value of a slider.</p>
  
  <pre><code>Content="{Binding Path=Value, ElementName=Slider}"
  </code></pre>
  
  <p>How do I append a percentage symbol?  The value of the slider is already formatted correctly, so when the value is '50', all I need is '50%'.</p>
  
  <p>I know how to do it in code behind but I was hoping to accomplish this in xaml without creating a converter.  TIA</p>