title: Magento Add Shipping Tax to Tax Breakdown And Grand Total
body: <p>I'm using Magento and I am having a problem with the totals being displayed.</p>
  
  <p>At the moment I have this:</p>
  
  <pre><code>Subtotal: £10.00
  Shipping &amp; Handling: £5.00
  Tax (at the moment just using 20% of Subtotal) (20%):£2.00
  Grand Total: £17.00
  </code></pre>
  
  <p>So It should look like:</p>
  
  <pre><code>Subtotal: £10.00
  Shipping &amp; Handling: £5.00
  Tax (need it to be 20% of subtotal AND 20% of shipping &amp; Handling) (20%):£3.00
  Grand Total: £18.00
  </code></pre>
  
  <p>As you can see the Tax has gone from £2.00 to £3.00 as I need it to take 20% of the Shipping &amp; Handling fee as well as 20% of the subtotal fee? </p>