title: SAP HANA Calculate percentage in a script calculation view
body: <p>I was wondering if there was a way to achieve this kind of aggregation :</p>
  
  <p><a href="https://i.stack.imgur.com/b65EF.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/b65EF.png" alt="Hana graphical calculation view with calculated column"></a></p>
  
  <p>In practice: using (I think) CE_AGGREGATION how is possible to create a percentage formula like the one in "calculated column"?
  I try a lot of combination (CE_PROJECTION,CE_AGGREGATION, CE_CALC...) but no ones of them works.</p>
  
  <p>This because it seems that the script do a kind of sum(A/b*100), but I would like to obtain sum(a)/sum(b)*100. In graphical mode is instead very simple!</p>
  
  <p>Someone has an idea about how to reproduce that?</p>