Ignore Quantity. It is always fixed, since the BAHA website has no shopping cart.

In the Decscription field, enter the name of the event and the number of tickets you wish to purchase (or the title[s] of the book[s] you want to buy). If you’re paying for a membership, indicate whether it’s new or a renewal.

Combine the ticket prices and enter the total amount in the Unit Price box. If you’re buying a book, add appropriate sales tax and shipping (see bookstore).

Click Update Totals.

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An automatic service charge will be added to each PayPal order.
It’s called a shipping charge but is, in fact, intended to cover PayPal’s service charge. Please do not deduct it from the amount you are paying.

PayPal Charge Scale

Order Amount	Charge
$0.01–$50.00	6%
$50.01–$150.00	5%
$150.01–$300.00	4.5%
$300.01 and up	4%