Magento分层定价变更格式

At the moment, my webstore uses several different customer groups to provide discounts, such as trade discounts. The functionality works fine, but i want to change the way the prices are displayed on the front end. Right now, the prices show like this:

£700.00

Buy 1 for £450.00 each and save 36%

For instance. So the customer is logged in, they can see the Retail price and then their price is the £450. I wish for it to say

List Price: £700.00
Your Price: £450.00 (save 36%). 

Is this possible?

The other issue is that when a customer is not logged in, i just want them to see the list price, and not the discounts etc.

How would i do this?

Yes its possible. You have to play with the file price.phtml and/or view.phtml. To get original price, use getPrice() method on your product object. To get discounted (final) price, use getFInalPrice()

Product object is usually $_product, so

$_product->getPrice();
$_product->getFinalPrice();

Now you may display however you wish.