title: JQuery PriceFormat and OnChange
body: <p>I'm using JQuery PriceFormat Plugin (http://jquerypriceformat.com/).</p>
  
  <p>My code is as following:</p>
  
  <pre><code>$('#valor').priceFormat({
      prefix: 'R$ ',
      centsSeparator: ',',
      thousandsSeparator: '.',
      limit: 8,
      centsLimit: 2
       });
  </code></pre>
  
  <p>However, but I want to be capable of changing a value of another input while the users type the value. For example, the input that I'm using priceFormat in, is a product price. But, there is another input called taxes, for example, that is dinamically changed by the price (let's say that the tax is 1% of the price). I want to be capable of changing the tax value while the user change the product price.</p>
  
  <p>How can I do this?</p>