Sue has a car registered with plate XX-111. She wants to change to plate ZZ-999. She must turn in the registration and plates for XX-111 and pay a $21.50 fee.
John owns two cars - a Taurus with plate AB-111 and a Mustang with plate AB-222. To put plate AB-111 on the Mustang and AB-222 on the Taurus, he must do a two-way plate change with a fee of $41.50.