Problem With Price Rounded

[lustfingers]

Hi, presta 1.6.0.14

 

In options I choose rounded to 2 place after decimal. When I add some percent discount to product some times price is like this:

 

1.104

 

In product list, or product page price is rounded correctly to:

 

1.10

 

When I add 4 products to cart price is:

 

4 * 1.10 = 4.40

 

but in order confirmation price is displaying like:

 

4 * 1.104 = 4.416 so it's rounded to 4.42

 

Did you know how to display the same price everywhere?