private decimal CalculateTragedy(int idEvent, int audience) { var valueaddicional = 0; var priceRet = _priceRepository.GetList(x => x.idEvent == (int)Constants.EventType.Tragedy)?.Single(); if (priceRet.audience < audience) { valueaddicional = (audience - priceRet.audience) * 1000; } return(priceRet.value + valueaddicional); }