Corrective Action Closure Rate Calculator

Enter your corrective action counts for a selected reporting period.

Sample monthly snapshot for a mid-size site team.

• Effective Total = Total Created − Cancelled
• Closure Rate (%) = (Closed ÷ Effective Total) × 100
• On-time Closure Rate (%) = (Closed On Time ÷ Effective Total) × 100
• Backlog Open = Effective Total − Closed
• Reopen Rate (%) = (Reopened ÷ Closed) × 100
• Weighted Closure Rate (%) = (Σ Closed_p×Weight_p ÷ Σ Created_p×Weight_p) × 100
• Average Days to Close = Sum of Days to Close ÷ Closed

1. Pick a reporting period that matches your weekly or monthly review.
2. Enter Total Created and Closed actions for that period.
3. Add Cancelled records if duplicates or invalid items exist.
4. If you track due dates, enter Closed On Time and Overdue Open.
5. If quality control reopens items, enter the Reopened count.
6. Optionally add priority counts to compute a weighted closure rate.
7. Click Calculate, then export CSV or PDF for sharing.

Corrective Action Closure Performance Guide

1) Why closure rate matters on active sites

Corrective actions convert observations into verified fixes. A strong closure rate helps reduce repeat findings, improves readiness for client walkthroughs, and supports safer, cleaner work zones. Tracking closure alongside backlog gives managers a simple, defensible view of whether issues are being resolved or accumulating.

2) Define the reporting period and “effective total”

Start by choosing a consistent weekly or monthly period. The calculator uses Effective Total = Created − Cancelled so duplicates and invalid items do not distort performance. In many programs, cancellation rates between 2% and 10% are common when records are cleaned and standardized.

3) Closure rate and practical benchmarks

Closure Rate is (Closed ÷ Effective Total) × 100. Many construction teams set a target between 85% and 95% for routine periods, then tighten expectations before major milestones. If your rate is high but backlog remains large, increase cadence, assign owners, and remove blockers.

4) On-time closure rate protects schedule and compliance

On-time closure is critical when items have due dates or service levels. A 92% closure rate with only 60% on-time may still create audit risk. Use the on-time metric to validate that the team is not “closing late” and calling it success. Prioritize overdue items first.

5) Backlog and overdue open show workload pressure

Backlog equals Effective Total − Closed for the period. Overdue Open highlights late items within that backlog. When overdue open grows for two consecutive reviews, capacity is likely constrained or approvals are stalled. Use short weekly review meetings and clear due dates to restore flow.

6) Reopened actions reveal quality of fixes

Reopened actions often indicate weak verification, incomplete evidence, or recurring causes. The calculator reports Reopen Rate = (Reopened ÷ Closed) × 100. As a rule of thumb, many teams aim to keep reopen rate in the low single digits by tightening closeout checks.

7) Weighted closure rate focuses effort on critical items

Not all actions carry the same risk. If you track priority, the weighted rate (High=3, Medium=2, Low=1) highlights whether critical items are closing quickly. A site can show 90% overall closure but still underperform if high-priority items stay open. Use weights to steer resources.

8) Cycle time turns results into improvement plans

If you enter the sum of days to close, the calculator estimates average closure duration. Pair this with closure and on-time rates to create practical actions: add responsible persons, set evidence standards, and remove repeated root causes. Export CSV/PDF for trend reviews, audits, and closeout packages.

FAQs

1) What should I count as “created”?

Count new corrective actions raised in the selected period, including safety, quality, and environmental items. Keep the definition consistent so the closure trend remains comparable across weeks or months.

2) Why subtract cancelled actions?

Cancelled items are often duplicates, wrong classifications, or invalid records. Subtracting them creates an effective total that better reflects real workload and avoids overstating the effort needed to achieve a target.

3) Can closed actions exceed created actions?

In strict period accounting, closed actions should not exceed the effective total for that period’s created items. If you close older backlog items, track created and closed for the same period carefully, or use a backlog-based report.

4) What is a good target closure rate?

Many teams set 85%–95% depending on project phase, risk profile, and staffing. Use a realistic target early, then increase it as processes stabilize and before key inspections or turnover milestones.

5) How do I calculate “sum of days to close”?

For each closed item, calculate the number of days from open date to verified close date. Add those durations together and enter the total. The calculator divides by closed actions to estimate average days to close.

6) What does a high reopen rate mean?

A high reopen rate usually points to weak verification, missing evidence, or incomplete fixes. Improve closeout quality by requiring photos, sign-offs, and clear acceptance criteria before marking actions as closed.

7) When should I use weighted closure rate?

Use weighted closure when priority matters, such as safety-critical hazards or client quality issues. It helps ensure critical actions close promptly even when overall closure appears acceptable due to many low-priority closures.