key performance indicator
noun [ C ]
ukus( abbreviation KPI); (also key indicator) ECONOMICS, HR
one of the most important indicators (= something that shows what a situation is like or how it is changing) that show how well an economy, company, project, etc. is doing, or how well an employee is working:
The key performance indicators for these divisions should be growth in sales, margins and franchise numbers.
A performance-related bonus will be awarded according to how well you have done in relation to the key performance indicators that were agreed at your appraisal.