I just used the official paypal currency converter wich has the actual dollar and euro status updated daily at least.
I checked how much 280 dollar in euro was - it was 201 euro.
I just made a order with our drlava and i needed to pay 220 euro for 288,40 dollar.
So paypal's payment system asks more then their own currency converter.
And those 8,40 dollar extra is already for paypal fees.
i guess they get double money with every transaction...?