title: How to use float filter to show just two digits after decimal point?
body: <p>I am using Flask/Jinja2 template to show a number using <code>|float</code> filter.</p>
  <p>Here is my code</p>
  <pre><code>{% set proc_err = nb_err|length / sum * 100 %}
  ({{proc_err|float}}%)
  </code></pre>
  <p>Output is a bit awkward:</p>
  <pre><code>17/189 (8.99470899471%)
  </code></pre>
  <p>I am looking for a way to make the places after dot limited to a number e.g. 2.</p>
  <p>Desired output:</p>
  <pre><code>17/189 (8.99%)
  </code></pre>