A student spends most of his weekend playing and watching sports, thereby tiring him out and leading him to oversleep and often miss his Monday $8$ AM Computer Science class. Suppose the tuition per semester is $$25,000,$ and the average semester consists of $15$ units. If the Computer Science class meets three days a week, one hour each day for $15$ weeks, and is a four$-$unit course, how much does each hour of Computer Science class cost the student? Design an algorithm that computes the cost of each Computer Science class.