Enter your Order Total from the order form into the "I have" field below. Select your country currency in the "I want" field.
Select your country from the "country payment is coming from" drop down. USA should be already selected in the "going to" drop down. Enter the result from the "I want" conversion above into the "For you to get" field in the lower right. Press Calculate and use the "A person must send you this amount" amount when you pay via PayPal.