title: How to do calculation in xaml while binding?
body: <p>I can bind a label to a slider as shown below:</p>
  
  <pre><code>&lt;Label Name="lblTest" Content="{Binding ElementName=slider1, Path=Value}"/&gt;
  </code></pre>
  
  <p>How do I bind another label to the same slider with display value of, say, 30% of the value of slider? How do I do the calculation in xaml and not in my code? Thanks.</p>