title: Converting currency needs proper round(2)
body: <p>This is my code to convert local currency to EUR</p>
  
  <pre><code>price_eur = price.to_i / 3.4528
  price_eur = price_eur.round(2)
  </code></pre>
  
  <p>The problem is, if <code>price=0.8</code>, I get result <code>price_eur=0.0</code>, why? </p>
  
  <p>How to make it <code>0.80</code> (proper value AND always leading zero)?</p>