Hello,
The attrition rate is calculated based on the available manpower and the number of resigned employees in the month. The formula is:
Attrition Rate = Number of Resigned / Available Manpower * 100
For example, if in the previous month the manpower was 100, and during that month 10 employees resigned and 20 were recruited, the available manpower would be 100 - 10 + 20 = 110. Therefore, the attrition rate would be:
Attrition rate = 10 / 110 * 100
I hope this clarifies the calculation for you.
Regards,
Amit Seth