If you cancel more than 48h before the beginning of the trip :
You'll be refunded of the total amount of the booking less the cancellation fees (which are the traveler's fees).
If you cancel less that 48h before the beginning of the trip :
In this case, you'll be refunded of the total amount of the booking less the cancellation fees (traveler's fees) and less the price of one night per week booked which is transferred to the host as a compensation, because he could have received someone else instead of you.