Questione giuridica chiave
Whether VAT must be included in the turnover base used to calculate the concession commissions
Decisione estratta
The term 'turnover' in the concession, as interpreted under the trust principle, covered annual gross receipts without deducting taxes, so VAT was included.
Motivazione estratta
The court upheld the cantonal court's interpretation that the 1993 amendment did not materially change the calculation method and that the contractual wording referred to gross annual turnover. The appellant's contrary interpretation was not shown to be arbitrary.