The manager of a radiology center in a health clinic which performs all types of procedures such as MIR's, CT Scans, Ultrasounds, and others is interested in being able to predict the overhead cost each month for the department. The manager believes the overhead varies with the number of procedures, but that some costs remain the same regardless of the number of procedures performed. As the managerial accountant for the clinic, what type of analysis would you prepare for this manager to help him/her understand the cost behaviors and relationships? Provide specific details.