noun
metric
MET-rik/mˈɛtrɪk/
A measure used to evaluate or compare something.
Elapsed time provides a metric for comparing the runners' performances.

Etymology
The root means 'measure' and could describe both verse and measured quantities. A metric serves as a measure in the broader sense: a standard against which something can be assessed or compared.
In context
So in other words, if at least 75% of page views to a site meet the good threshold, then the site is classified as having a good performance for that metric.
More examples
- The clinic tracks average waiting time as a performance metric.
- We use the same metrics to compare all three stores.
- Test scores are not the only metric of student success.
Forms
metric · metrics