What it shows
All prevention records divided by all failure records (internal and external) in the period. The line below gives the number of failures.
Why it matters in manufacturing
It shows the balance between working ahead and handling the consequences, counted in activities rather than money.
How to read it
Higher is better. The tag compares with the same period last year; the sparkline shows the value per month. A rise because failures fall is as good as a rise because prevention grows.
What good looks like
A value that rises over time: more prevention work for every failure recorded, while the number of failures falls.