title: Wrong value after multiplication by 100
body: <p>The jQuery displays 12.123456789123003 instead of 12.123456789123 when this value  1212.3456789123 multiplies with 100.</p>
  
  <p>Code:</p>
  
  <pre><code>&lt;p class="price"&gt;12.123456789123&lt;/p&gt;
  &lt;button&gt;Calculate&lt;/button&gt;
  
  $(':button').click(function () {
      $('p.price').text(function (i, v) {
          return v * 100;
      });
      this.disabled = true;
  });
  </code></pre>