These are extra charges to be added on top of the total amount of the reservation. On each mandatory cost you need to establish the following parameters:
Is the total amount added on top of the reservation amount (it will be calculated in relation to the hereafter parameters…)
Per person: The amount will be multiplied by the occupancy of all rooms booked.
Per room: The amount will be multiplied by the number of rooms booked.
Per reservation: The amount will be multiplied by 1.
In this case the amount (besides been multiply in relation to its type) will be multiplied by the number of nights booked.
You can establish this mandatory charge to apply only on certain periods (seasons) and not throughout the year.