Hey there @Marsha42205 -- great question!

This article goes over how to customize your event type settings, to include the “collect payment” section. 

All you need to do is click into your event type > click “booking page options” > scroll to “collect payments” > update the amount being charged > click “save and close” at the bottom of the editor.

This new price will apply to all new bookings from that point on! 

I hope this helps!