title: How the discount renders to totals on checkout section in magento?
body: <p>How the discount renders to totals on checkout section in magento?</p>
  
  <p>The subtotal, grandtotal are renders using the template files in designs/.../tax/checkout/ folder..</p>
  
  <p>But, I didn't find the template for discounts which renders on checkout page in magento.</p>
  
  <p><img src="https://i.stack.imgur.com/OUizh.png" alt="How Discount renders on magento checkout page?"></p>