title: jQuery: Multiply a number with 7.5
body: <p>I'm about to design a webshop, build upon the Big Cartel webshop system. The nearest currency they use is Euro, but I want Danish Kroner (DKK), which is 7.5 of Euro.</p>
  
  <p>How can I multiply the number within a div.price?</p>
  
  <p>I've found "jQuery Calculate"-plugin, but I can't figure out how it works.</p>
  
  <p>Plugin site: <a href="http://www.pengoworks.com/workshop/jquery/calculation/calculation.plugin.htm" rel="nofollow">http://www.pengoworks.com/workshop/jquery/calculation/calculation.plugin.htm</a></p>
  
  <p>Thank you in advance...</p>