title: Excel icon set for conditional format shows wrong icons
body: <p>I have a table with some % values in it.
  For some reason the conditional formatting seems off.</p>
  
  <p>For example, see (crappy picture sorry as its on an air-gapped system)</p>
  
  <p>I cant understand why the top right 43% and 45%'s are red? It doesnt make sense.</p>
  
  <p>Any ideas?
  Ive played around with changing to "number" and moving the values, but still teh oddity remains.</p>
  
  <p><a href="https://m.imgur.com/gallery/k54hfLX" rel="nofollow noreferrer">https://m.imgur.com/gallery/k54hfLX</a></p>