Absence costed using the gross employment cost method (salary + NI + employer pension, ÷ 260 working days) applied to your own average salary. Grievance cost: £951/case, disciplinary cost: £1,141/case (ACAS, "Estimating the Costs of Workplace Conflict," 2021, management time only). Turnover cost: £30,614 per leaver (Oxford Economics / Unum, includes recruitment, induction and lost productivity). These are UK-wide published benchmarks and will not reflect every organisation's actual costs exactly — they're a starting point for an internal conversation, not an audit. WERK's own case study, built the same way from Citizens Advice Leicestershire's actual data, is available on request.