title: How to calculate average with Django?
body: <p>In my Member class I have "wins" and "losses" - how do I calculate the average win rate by these 2 fields? </p>
  
  <p>I can manually insert a average field and do the calculations myself, but I'm sure Django can do that for me. Any ideas?</p>
  
  <p>Note: I would like the average of EACH member, not the overall average</p>