According to the available information on the official website, it appears that Porsche PET contains only the part numbers and their specifications. There is no price listed. I believe that is available when you order the part through the authorized dealers.
You can obtain additional information on the following link where the software is hosted: http://autoepc4you.com/catalog/view/porsche_pet_7_2
If you have other questions, contact the developers through the following email as well: