Here is the retention rate formula:
Retention Rate Formula
% Retention Rate (RR) = 100 - [ {(S - (UT + BT)) / AE} x 100]
Where:
- RR = Retention Rate
- S = Total number of terminations from whatever cause (In effect, this means the total number of employees that have left the company for whatever reason)
- UT = Unavoidable terminations (i.e., retirements or long-term illness)
- BT = Beneficial terminations (i.e., sometimes those staff that do leave provide benefit to the company by virtue of leaving, for example, underperformers)
- AE = The average number of employees working for the company during the same period as calculated; this should be any period of 12 months.
Hope you will find this useful.