Confused About Calculating Attrition? Let's Clarify the Formula Together

Hi, could anybody please clarify the attrition formula for me? I have gone through various posts and am a bit confused about it.

Hypothetical Example:

Opening Headcount: 2812
200 new joiners
65 resignations for the month
Thus, the closing Headcount = 2812 + 200 - 65 = 2947

Is it:
1. Attrition for the month/Total Headcount * 100 = (65/(2812+200)) * 100 = 2.15% or,
2. Attrition for the month/(Opening Headcount + Closing Headcount)/2 * 100 = 65/(2812+2947)/2 * 100 = 2.25%

Dear Soumita, Please see the posts at https://www.citehr.com/927-attrition...lculation.html. Rajat Joshi has given a good explanation. It does not matter which of the two alternatives you use; you need to be consistent in its use to compare figures from one period to another. Have a nice day.

Regards, Simhan A retired academic in the UK

The formula depends on what you are measuring. Hence, please use the research facility in the green box at the top. Have a nice day.

Regards,
Simhan