title: How to escape % in printfn / sprintf?
body: <p>How can you print text with an actual % sign in it using printf/sprintf ? e.g.</p>
  
  <pre><code>let fn = 5
  printf "%i%" fn
  </code></pre>
  
  <p>gives a compile error. The obvious <code>\%</code> doesn't work either. </p>