//Case 2
        public void TotalCost()
        {
            List <Outing> outingList = new List <Outing>();

            var listOfEnums = Enum.GetValues(typeof(TypeOfEvent));

            foreach (TypeOfEvent eventType in listOfEnums)
            {
                outingList = _outingRepo.ListByType(eventType);
                Console.WriteLine($"The cost of this event was {_outingRepo.TotalCost(outingList)}");
            }
        }