title: Axis tick labelling
body: <p>The x axis of my line graph represents money. Is there any way to append a € symbol to the beginning of each tick?</p>
  
  <p>At the moment they are just values 2000000, 250000, 300000....</p>
  
  <p>I would like them to display €2000000, €250000, €300000....</p>
  
  <p>I tried adding the € to my .CSV file but it caused an error when I tried to call the data to make my axis.</p>