title: show decimal or double with zeros
body: <p>i get price values from DB.</p>
  
  <p>now whenever the price is perhaps 5, I want to show 5.00</p>
  
  <p>if its 4.3 it should be 4.30.</p>
  
  <p>how to convert that?</p>
  
  <p>thanks</p>