Related Questions:
Does the price of the Menu Items I have attached to a Booking change when changing the price of the Menu Items in our Settings?
Does changing the price of a Menu Item in our Settings affect linked Menu Items?
Answer:
Changing the Prices of Menu Items in your Organization Settings does not affect Bookings with the Menu Item already attached.
If you add the Menu Item after the price has been changed in your settings, the new price will be reflected.