vBulletin licenses cost?
 

Hey there, I am willing to buy a vBulletin license (publishing suite) but I am kinda confused by the prices. I am french and live in France, and when I convert the cost of the license I want ($285) in €, it tells me that would cost around 223€. I then convert $285 in euros from websites like www.xe.com and it gives me around 207€.

Why aren't the licenses for sale at the exact price of the currency I want to buy it with?

Excuse me for my english, I hope you understood my question.