title: Google Data Studio: cumulative column
body: <p>I have a MySQL database connected to Google Data Studio with columns including 'date' and 'new users'. The 'new users' column has the number of new users per day.</p>
  
  <p>I would like to plot a graph of the cumulative number of users against date. This would be easy to do in a spreadsheet (by adding a column that adds up a running total), but I can't figure out if it's possible in Data Studio.</p>
  
  <p>Any ideas?</p>