Why Are Prices Being Shown as Zero?

[ejd]

Joomla 1.7.3
VM2

On the product display, all my prices are showing up this way.
I have not done a discount on the product.

Sales price: $ 99.95
Base price with tax: 0
Price with discount: 0

If I discount the product, then I get this:

Sales price: $ 69.95
Base price with tax: 0   Discount: $ 30.00
Price with discount: 0

Where is the documentation on what is going on with the prices?

[PRO]

Look i  your price settings config.
Also in your calculation settings