Operates a specialty system called the Big MAC. The system costs $1200, research has shown these systems fail 1 every 10 years, the administrators are paid $50/hr and it will take one of the administrators 5 hours to replace one of these systems. There are seven employees who use this system, and they make $25/hr. These employees are completely unproductive while the system is down.

Look for SLE, ALE, ALE

ALE should be 0.1

SLE should be 1200 x 0.1 but how to add the costs of administrators and employees?