STEP 1: On the Paypal page where you see "Your Order Summary" input the amount you are paying in the "Item Price" field then click the "Update" button 

STEP 2: If you don't want to use a PayPal account, then under "Choose a Way to Pay" select the text "Don't Have a PayPal Account" then under "Pay with a debit or credit card"  Fill inthe fields and hit "Pay."  

STEP 3: Answer the questions and follow the instructions.  A receipt should be automatically sent back to your email address.  Thank you.