Gravity forms Woocommerce (cart=only vat prise)

Hello When using normal woocommerce product ,
in the cart page i have 2 fields the first one (prise) shows the excluding vat prise
the second one (total) shows including vat prise.

But when i added a woocommerce product that has gravity form options only and calculations , both the excluding vat and including vat prises show the including vat prise.

Here is a picture of the situation:
http://prikachi.com/images/680/6977680l.png