Principia

Cost of Turnover

operationalpure operational · attrition · currency · organization

The total cost incurred by the organization to replace employees who left during a period.

How it’s computed

Formula
Average cost to replace one employee × Number of leavers in period
Measurement model
operational (a formula over systems data) — not a reflective survey scale; “reliability” here means data quality, not internal consistency
record grain →← summary (lossy)financereplacement_costΔt 12moHRIS separationsΔt 12moavg cost toreplace one employeex̄leaversin periodΣnCost of Turnoverι
Fig. How Cost of Turnover is built — data sources → actions → metric, read left to right. The grain boundary marks where record detail becomes a summary.

What it operationalizes

This metric measures the construct(s) below from operational data. Through them, it connects to the meta-analytic relationship network — the bridge from what you measure operationally to what the science knows.

Use it

Track Cost of Turnover and its drivers in the People Analytics Toolbox — the registry’s evidence wired into deployable measurement.

Related metrics

Impact of Loss Score

A rating of how detrimental a particular employee's departure would be to the organization.

New Hire Turnover

The rate at which recently hired employees leave within an early-tenure window.

Programmatic access: /api/v1/metrics/metric.cost_of_turnover · /api/v1/evidence-statements?construct=construct.costs.