A vacant nursing post typically costs 1.5–2x the salary in cover and lost productivity. Fill rate reflects how much of the vacancy is covered by bank/agency vs left unfilled.
Vacancy Cost
Weeks covered by bank/agency6.4
Bank/agency cover cost£7,200
Uncovered weeks1.6
Productivity loss (uncovered)£1,477
Total cost of the vacancy
£8,677
≈ £1,085/week
Compare against the Employer Cost Calculator to see whether filling the post substantively is cheaper than prolonged temporary cover — it usually is within a few months.