Since we&#x27;re talking about specific sums of money, how much is that time worth? You have to put a number on it one way or another.<p>If we wanted to be arbitrary about it, we could pretend that a janitor&#x27;s time is worth a trillion dollars per hour because said janitor&#x27;s time is a finite resource that can never be recovered. However that doesn&#x27;t do much for you when you have to actually decide how to pay a janitor.