The pricing you see there is for a single organizer. If you need multiple organizers, then you would multiply the costs.
Ok, got it. Thanks for your patience to explain that to me!
But all of those accounts can be billed through a single account.
You may add as many Organizers as needed, there is no limit.
All online subscriptions are paid through a single credit card, and managed by a single Billing Administrator. This would be the person creating the account to begin with.