In case of cancellation you have to pay:
10% from 30th November up to 6 months before arrival, 20% up to 60 days before arrival, 30% between 59th and 21st day before arrival, 50% between 20th and 11th day before arrival and 60% between 10th and penultimate day before arrival, at least 80% one day before or on the day of arrival.