Understanding Retention Rate
How we calculate. Retention % = (still employed ÷ start-of-period headcount) × 100. The form uses the same arithmetic as the worked examples on this page. See our methodology and accuracy policy.
Real-world scenario: A typical Retention Rate case uses employees remaining 185 and starting headcount 200. Enter the same figures below to reproduce the worked path.
What is Retention Rate?
Complementary to turnover. Cohort retention often excludes mid-period new hires from the denominator.
- Starting headcount is the usual denominator
- Remaining = still employed at period end from that start set
- Not always 100 − turnover when definitions differ
The Formula
Worked Example
Common Use Cases
- Cohort tracking: class of hires
- Leadership goals: retain critical roles
- Vendor SLAs: contractor retention
Pro Tips
- Define the cohort before comparing teams
- Exclude planned exits if policy requires
- Report with turnover for full picture
Limitations: Retention Rate results are educational HR planning aids—not legal, payroll, or employment advice. Confirm definitions with your HR/finance policies.
FAQ
Is retention 100% minus turnover?
Only when both use matching definitions and the same period math. Cohort retention often differs.
What about new hires mid-period?
Classic retention uses the starting cohort only; new hires get their own cohort later.
Authoritative References
For people-analytics definitions, consult: