Interpret the figure in context. A stable annual rate in one role group may be costly if the leavers have scarce skills, while expected seasonal exits can produce a high rate with less concern. Compare like periods, locations, employment categories and definitions. A quarterly percentage should not be compared directly with an annual percentage without an appropriate method.
Break down the total by voluntary status, tenure, job family, manager or location where sample sizes permit. Exit interviews and engagement information can help explain movement. Small groups produce volatile rates: one departure from a team averaging five is 20%.
The rate is an indicator rather than a retention target by itself. Consider hiring volume, vacancies, absence, performance and the cost and quality of replacement alongside it.
Headcount methodology deserves special attention. An opening-and-closing average can miss a large midyear seasonal peak, making turnover appear too high. Averaging twelve month-end snapshots often gives a fairer annual denominator. Full-time-equivalent staffing is not automatically interchangeable with headcount: a departure is a person count, so the denominator normally should also count people unless the organisation deliberately defines another measure.
Benchmark figures are useful only when sector, occupation, geography and definition are reasonably comparable. Instead of chasing one external average, track a consistent internal series and investigate meaningful changes. Confidence in a small denominator is limited, so show counts next to percentages.