What it shows
The number of records per month and bucket, with the change in records and in cost per record against the comparison period.
Why it matters in manufacturing
It separates volume from value: cost can rise because more events happen (more inspections, more complaints) or because each event costs more.
How to read it
Fewer records with a higher cost per record points to severity or price. More records and more cost means the process itself generates more events.
What good looks like
Fewer failure records over time with a stable cost per record, and appraisal records that follow production volume rather than piling up.