Is that a rounding?<p><pre><code> 1337 * pi/100 = 42.00309...
</code></pre>
[] <a href="http://www.wolframalpha.com/input/?i=1337+*+pi%2F100" rel="nofollow">http://www.wolframalpha.com/input/?i=1337+*+pi%2F100</a>
It simply rounds percentages to two decimal digits, and when those two digits are zero, they are hidden. For example, see: <a href="http://www.wolframalpha.com/input/?i=%28e^pi-pi%29*100%25" rel="nofollow">http://www.wolframalpha.com/input/?i=%28e^pi-pi%29*100%25</a>