Percentage change and percentage points are often confused because both describe movement between two percentages. They are not interchangeable, and mixing them can distort reporting or pricing discussions.
A move from 10% to 15% is a change of 5 percentage points, but it is a 50% increase relative to the starting value.
What Percentage Points Measure
Percentage points measure the simple arithmetic difference between two percentages. They are useful when the audience needs the direct spread between rates.
What Percentage Change Measures
Percentage change measures the relative change compared with the starting value. It is useful when you want to describe growth or decline proportionally.
Why the Difference Matters
Using the wrong one can overstate or understate movement. Reporting, pricing, conversion-rate analysis, and policy discussions are common places where this confusion shows up.