We will calculate the price based on the new (extended) rental end time. It could happen that you will not receive additional income if the extended time is still within a full rental day (24 hours).
See the examples below:
Example 1: the original booking was for 24 hours (1 rental day). The renter extends the booking by 6 hours. This means the booking is now 30 hours long (1,5 rental days). The renter has to pay for extending the original booking by 0,5 days.
Example 2: the original booking was for 10 hours (1 rental day). The renter extends the booking by 10 hours. This means the booking is now 20 hours long (still 1 rental day). The renter does not have to pay for the extension. See this article for more information about half and whole rental days.