Calculate the share of eligible returns completed within a stated service target. Enter total eligible volume, the number completed on time, and a target percentage. The page reports the achieved service level, late volume, and the additional on-time completions needed to reach the goal. It is a straightforward way to review SLA performance without hiding misses inside excluded or ineligible records.
Service level = returns completed within target ÷ eligible returns × 100%
Required on-time count is rounded up because a fraction of a return cannot satisfy the target.
The percentage describes reliability against the service definition you supplied. The outside-target count shows misses, while the goal gap converts the percentage shortfall into a workable number of returns.
Define eligibility and the time target before collecting the counts, then use the same rule for every record in the period.
If 460 of 500 eligible returns meet the target, service level is 92.0%. At a 95% goal, 475 must be on time, so 15 additional returns would have needed to meet the target.
Include every return covered by the stated SLA and apply documented exclusions consistently.
A whole return must meet the target, so the minimum required count is rounded up.
Not directly. Compare periods or operations only when their eligibility and completion-time definitions match.
That is inconsistent input, so the calculator asks you to correct the counts.
No. It summarizes the eligible population; individual experiences and excluded cases still need separate review.
| Variable | Meaning | Unit |
|---|---|---|
| Eligible volume | Records covered by the SLA | returns |
| On-time volume | Eligible records within target | returns |
| Target | Desired service level | percent |
| Late volume | Eligible minus on-time | returns |