Measuring Recruiter Productivity: How Do You Calculate It for Different Job Levels?

Is there any defined method from which we can effectively calculate the productivity ratio of a recruiter to measure how productive he or she is in closing positions? Does it depend on the levels of recruitment (senior, middle, low-level positions)?

Can you help me with this?

Thank you for your time that you shared with me. I believe you can assist me in resolving my query regarding calculating the actual productivity ratio of a recruiter. This information has given me an understanding of all the measures that should be considered and all the fields that need to be taken into account when thinking about productivity.

However, I am still uncertain about how to evaluate a recruiter's performance and how we can transform it into a meaningful measurement.