Setting/propertiesinvoiceroomchargetype de

You can choose if the price for the room is shown as one line with a sum "per booking" or as a line "per date" for each night in the booking.

If you select "per date" the average price for every day will be shown.

"per date" works only for bookings made on the booking and bookings entered manually in the control panel. If you change the setting the change will only apply to bookings made after the change.