title: Google Data Studio - How to get percentage of users who performed an event?
body: <p>I have setup a dashboard where I could easily get the number of users who performed a certain event in a card. I have used the 'users' metric with a filter for the 'event category' and 'event action' and it gives me the number of users who performed this event.</p>
  
  <p>What I really want to do is to display the percentage of the total users who performed the event. Instead of displaying 15 users performed the event I want to display 20% of users.</p>
  
  <p>How can I achieve that? I cannot have a user metric filter and another without the filter to make the comparison. Am I missing something?</p>