It becomes imperative that as an administrator, you should be aware of the number of people who have completed the Review process. Broadly speaking, you will be looking at these points specifically: 

1. Number of People who have started with Review process

2. Number of People who have completed with Review process

3. Number of Managers  who have started with compensation process

(The above list is non-exhaustive)

To help you with it, we have a Review Status Dashboard, which is accessible in the system. Once you log in with an account having administrative rights, you can see it. Attached is an animated document, which helps you explain how you can access it.

Happy Reviewing :)

P.S : If you want these reports scheduled to reach your mail inbox, contact your account manager or the support team. We will be able to help you out.