title: xPath and Math Functions
body: <p>I am trying to build an eCommerce website.  My distributor has provided me with a live XML data feed so I can essentially display their entire catalog on my website.  I am using <a href="http://www.wpallimport.com" rel="nofollow">WP All Imports</a> to parse this feed into product categories, which has been a struggle to say the least.</p>
  
  <p>In the XML feed they provide <code>{Price[1]}</code> which is their whole sale price.  Can I write a math function that increases this xPath by some amount?  </p>
  
  <p>For example</p>
  
  <pre><code>{Price[1]}*1.2
  </code></pre>
  
  <p>or</p>
  
  <pre><code>{{Price[1]}*1.2}
  </code></pre>