Find the difference in percentage points between two percentages.
A simple subtraction — not to be confused with percentage change, which divides by the original value.
Difference: New % − Old %
A percentage point calculator finds the plain arithmetic difference between two percentages. If a school's Class 10 pass rate goes from 82% to 88%, it rose by 6 percentage points. That is different from saying it rose by 6%, and this calculator exists to keep the two ideas apart.
Percentage points are the correct unit for changes in rates: interest rates, tax rates, GST slabs, voter turnout, unemployment rates and exam pass rates. News reports, policy documents and bank notices in India frequently talk about a rate going up 'by 0.25%' when they mean 0.25 percentage points. The distinction matters when you are comparing results or calculating what a change will mean in rupees.
1. Write the original percentage a% and the new percentage b%.
2. Subtract: difference = b − a, in percentage points (pp).
3. A positive answer is a rise, a negative answer a fall.
4. If you also want the relative change, compute (b − a) ÷ a × 100 and label it with %.
5. When reporting, say 'percentage points' for the subtraction and 'per cent' for the relative change.
When a pass rate moves from 82% to 88%, two questions can be asked. How many more students out of every hundred passed? That is 88 − 82 = 6 percentage points. By what proportion did the pass rate itself grow? That is 6 ÷ 82 × 100, about 7.3%. Both are true, but they are not interchangeable. The percentage point figure is absolute, like a change in marks. The percentage figure is relative, like a growth rate, and depends on the starting level.
Interest rate changes are best described in percentage points, often called basis points in banking, where 1 basis point is 0.01 percentage point. A home loan rate rising from 8.5% to 9% is a 0.5 percentage point, or 50 basis point, rise. Calling it a 0.5% rise would suggest 8.5 × 1.005 = 8.54%, a far smaller change. Getting this wrong can make an EMI increase look trivial or a subsidy look larger than it is.
When the starting percentage is small, a modest percentage point change is a large relative change. A defect rate falling from 2% to 1% is a drop of only 1 percentage point but a 50% relative reduction. Advertisers and headlines often choose whichever figure sounds more impressive. Reporting both, with the correct labels, gives the honest picture. This calculator gives the percentage point difference; the percentage change calculator gives the relative figure.
The principal of a school in Lucknow notes that the Class 10 board pass rate rose from 82% last year to 88% this year.
Answer: Difference in percentage points +6 pp
Reporting a change from 82% to 88% as a 6% increase.
Calculating the relative change and then labelling it as percentage points.
Applying a percentage point change as a multiplier, such as treating a 0.5 pp rate rise as multiplying the rate by 1.005.
Forgetting that a negative difference means the rate fell.
Describing changes in bank repo rates, loan rates and deposit rates.
Comparing exam pass rates, attendance rates or literacy rates across years.
Reporting shifts in vote share or turnout between elections.
Comparing tax or GST rate changes.
Reading market share changes in business reports.
Why does this matter? Isn't it just subtraction?
News reports often mix up percentage points and percentage change. A rate moving from 5% to 7% is a rise of 2 percentage points, but it is also a 40% increase. Reporting the wrong one is a common source of confusion.