What Controls Pricing For My Events?
Event pricing is set for each Event when the Event is added to the site.
After adding the Event details, you are automatically rolled to the registration screen where you can input online registration details, including pricing and registration deadlines.

The pricing fields you have available on this screen are based on the Event Type chosen when adding the Event.

(See What are Event Types? for more information)
If you do not see the pricing options you want after adding an event, you will need to Search your Event Types for the one that uses the right pricing matrix. Then delete the event and readd using the correct Event Type.