public void CostOfEachEventType()
{
Console.Clear();
List <Event> events = _eventRepository.GetEventList();
HashSet <string> eventTypes = new HashSet <string>();
foreach (Event outing in events)
{
eventTypes.Add(outing.EventType);
}
foreach (string eventType in eventTypes)
{
Console.WriteLine($"{eventType}: ${_eventRepository.CalculateCostsByEventType(eventType)}");
}
Console.WriteLine("Press any key to continue.");
Console.ReadKey();
Console.Clear();
}