Hi again,
Well, at the top of this page, towards the left corner, you could see these lines: "Send CiteHR Invitation, News | Toolbar | Bookmark | Consultants." Under this, you could see a text box displaying "Quick Search," and next to it, there is a "Go" button. So, just enter the term "Attrition" and click Go. Hundreds of results will be displayed. Have a detailed look at them and choose the one that suits you best.
Anyway, I did a search for you. Take a look at this topic. I hope this will help you out.
#26973
If you could not find it, here is the equation for your reference:
Total Number of Resigns per month (whether voluntary or forced) divided by (Total Number of employees at the beginning of the month plus total number of new joiners minus total number of resignations) multiplied by 100.
Source: Rajat Joshi (CiteHR Honored Member)
Let me know if you still face any problems.
~ Harry