Prices, discount Virtuemart 2

[roman5527]

Hi,
I have also problemik.
I used the product at the option overwrite the final amount to a sum specifically € 99.
Floods boots became € 149.

The orders are to me But somehow there is a skomolilo this discount plus € 50.
Thus, the subtotal price of the goods is € 199.

but subsequently the amount of the payment is a good € 99.
What is this? I made something from somewhere that is so?
how to fix it?

Examples of the screen.

Thank you