change the display of discounts

Trying to find out how to change this, but with no luck so far...

When I add a discount to a product it first displays the new price, and after that the old price with a stroke. I want to swap those two prices, so a discount is displayed like this: € 25,00 € 20,00
I suppose I have to change something in the code, but I can't find it.

Would be great if you have the solution Thanks in advance!

Well, first I need to say that I am not a PHP expert. I can do some little changes (mostly after just trying a lot) but I've been trying for hours but without any success. Best thing U get is to swap the prices before and after discount, but then the other products that don't have any discount display a price of zero.

If you have a hint for me where to swap to code it would be great. Otherwise, I will leave it like it is (but it seems just so odd to display the old price after the discount... )

Thanks.

Ah, this hint was just what I needed Thanks for your great support.