title: Can £ sign be recognised in price span in Microformats?
body: <p>The code inside a hProduct</p>
  
  <pre><code>&lt;span class="price"&gt;£10.00&lt;/span&gt;      
  </code></pre>
  
  <p>generates an error in the <a href="http://www.google.com/webmasters/tools/richsnippets" rel="nofollow">Google Structured Data Testing Tool</a> of:</p>
  
  <pre><code>Error: Price field includes invalid characters.
  </code></pre>
  
  <p>Changing the code to </p>
  
  <pre><code>&lt;span class="price"&gt;$10.00&lt;/span&gt; 
  </code></pre>
  
  <p>Gives no errors.  If I want to keep the £ inside the  is there anyway to change the class etc so it will format properly?</p>