A female employee was badly injured.
Calvia, says one report, has the second highest prices for rented accommodation in the country.
Foreign buying in the Balearics amounted to 40.5% of all transactions.
Valtonyc is due to enter prison by 24 May. His defence is to appeal to the Court of Human Rights.
The lack of an Easter effect was probably the reason for the decrease.
Fines totalling over 600,000 euros were imposed for room occupancy breaches.