Assuming you have configured pricing rules, admins can change the price of a booking from any scheduler view by selecting the edit option (here the day view is shown):
If you have user-directed notifications enabled, the booking holder will be notified of the price change.
Keep in mind that you can also edit the price of a booking that has been marked paid and also charged to the holder's payment method. Skedda will remind the admin to consider charging or refunding any price differences to the holder's payment method in this case (e.g. from your Stripe dashboard). The charge reference associated with this booking will be for the original amount that you charged the booking holder’s card.