You are the project manager for the CSR Training Project, and 21,000 customer service
reps are invited to attend the training session. Attendance is optional. You have
calculated the costs of the training facility, but the workbook expense depends on how
many students register for the class. For every 5,000 workbooks created, the cost is
reduced by a percentage of the original printing cost. The workbook expense is an
example of which one of the following?
Select one or more of the following: