An increase from 5% to 7% can be described ambiguously as “up 2%.” Percentage points describe the difference between rates; relative percentage change compares that difference with the original value. Include the baseline and unit so readers can check the statement.
Choose the question first
Eurostat uses percentage points when comparing two percentages. BLS explains relative percentage change by subtracting the earlier value, dividing by that earlier value and multiplying by 100.
These are illustrative figures, not website performance or Search Console data:
| Change | Rate difference | Relative change |
|---|---|---|
| 5% → 7% | Up 2 percentage points | Up 40% |
| 7% → 5% | Down 2 percentage points | Down about 28.57% |
The difference has the same magnitude in both directions, but the relative changes differ because the starting values differ.
Use the calculator deliberately
- Open the percentage calculator.
- Select the mode for change from an original to a new value.
- For the first example, enter 5 and 7 in the same units.
- Read the 40% relative change and the difference of 2 shown in the steps.
- When reporting the rate difference, label it yourself as 2 percentage points.
There is no dedicated percentage-point mode. The main result in change mode is relative change; do not relabel 40% as 40 percentage points.
Check zero and inconsistent bases
A starting value of zero makes this division undefined, and the calculator reports an error. State the before-and-after values and difference rather than inventing a growth percentage.
We also recommend checking that the numerator, denominator and reporting period have consistent definitions. Rates for different groups need that context. The calculator accepts numbers; it does not validate the meaning of your dataset.
Make the sentence reviewable
For the first example: “The rate rose from 5% to 7%, an increase of 2 percentage points or 40% relative to the original rate.” Add the actual data source and reporting period to a real report.
For a price reduction, see discount calculations. Applying a discount to a price is a different question from comparing two rates.
