title: Power BI Marketshare with DAX
body: <p>I got really stumped for my whole day on how to display marketshare on Power BI. My data is kind of complicated but I will try to simplify the problem in here, assume I have two tables:</p>
  
  <ol>
  <li>Dimension Supplier:</li>
  </ol>
  
  <p><a href="https://i.stack.imgur.com/GWbaL.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/GWbaL.png" alt="enter image description here"></a></p>
  
  <ol start="2">
  <li>FactInvoice:</li>
  </ol>
  
  <p><a href="https://i.stack.imgur.com/Xhuhl.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Xhuhl.png" alt="enter image description here"></a></p>
  
  <p>I would like to display the marketshare (Sum of Spend) for one specific supplier compared to others, with slicer and pie char like this:</p>
  
  <p><a href="https://i.stack.imgur.com/TYW2o.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/TYW2o.png" alt="enter image description here"></a> 
  So if user choose Supplier 2, the pie chart will show the marketshare of supplier 2 compared to others. I am not sure how DAX can support this</p>
  
  <p>If the Pie chart is not possible, is there any way to show this concept on the Power BI, it does not matter which visual we can use?</p>