Hello @Janine41,
One reason why we receive less than the price we set is that Airbnb deducts fees from the host.
Depending on the discrepancy, this may explain why you're receiving less.
They also operate a rounding mechanism as they never use fractions of the currency unit, always a whole number of £, $, € etc.
so an adjustment of £1 may not be enough to always increase the ammount you get, especially if any currency conversion is also involved.
The link below has information about finding a breakdown of charges for your reservations.
what-are-host-service-fees
You can find more information by using the help function to search for "fees"
If this doesn't explain the difference then you'll have to contact Airbnb and ask them.
Contact-Airbnb-A-Community-Help-Guide/
Steve.