While budgeting for your trip, the following information should be considered:
Price of yacht rental
Obligatory extras like food expenses, marina fees, etc., (stated in the offer for each boat)
Optional extras like land excursions, transfer organization, hotel accommodation (if you want them, per boat, stated in offer)
Gratitude for the crew (optional)
Transport to destination and back home (port of embarking and disembarking will be stated in offer)