How much are cancellation fees?

Cancellation fees for cancellations from 7 days before until 1 day before the date of travel are %50, while cancellation fees for cancellations on the date of travel are 100%. Cancellation fees for chartered cruises are 100% at any time from initial reservation. (Essentially cancellations are not accepted) Any "boat change" or "date or time change" requests are also treated as cancellations.