Prior to beginning work on this discussion forum, read Chapter 13: Progress and Performance Measurement and Evaluation from your course textbook and Chapter 6.5: Develop Schedule and Chapter 7.4: Control Costs from the book, PMBOK Guide. The cost performance index (CPI) is a popular index.

How is the CPI determined?

As the project manager of hiring employees, how can you use the CPI? Provide a real-life example in your discussion post.