Below is a description on what formula we use to calculate employee turnover in our "HR dashboard" overview.
Annual turnover
Last 365 days.
Formula:
Number of employees terminated during the last 365 days / (Number of active employees today + Number of active employees 365 days ago) * 2 * 100
Monthly turnover
Last 30 days.
Formula:
Same as the annual formula, but using the last 30 days:
Number of employees terminated during last 30 days / (Number of active employees today + Number of active employees 30 days ago) * 2 * 100
First year turnover
Last 365 days.
Formula:
Terminated employees who worked less than 365 days / Employees terminated within last 365 days * 100