Everyday Money
Percentage Points Calculator
Enter an old and new percentage to see the point change and relative change.
Percentage points vs percent
A move from 10% to 12% is often mislabelled as a “2% increase.” In careful language that is a 2 percentage-point (pp) change, while the relative increase is 20% because 2 ÷ 10 × 100 = 20. Enter the original and new percentage rates to see the point difference, the relative percent change and whether the move was up or down. Mixing points with relative percent muddies interest-rate talk, tax rates, conversion rates and pay negotiations. If the starting rate is zero, relative change is undefined. For directional change of any two numbers see percentage change; for “what share is X of Y?” use percentage of.
Worked example
10% → 12% = +2.00 pp and +20% relative. 20% → 10% = −10.00 pp and −50% relative.
Limits and assumptions
Relative change is undefined when the original percent is zero. Values may exceed 100 for some rates; the arithmetic still holds.
Frequently asked questions
Percentage points vs percent — what is the difference?
Points are the absolute gap between two percentage rates (12 − 10 = 2 pp). Relative percent scales that gap by the starting rate.
How do basis points relate?
One percentage point equals 100 basis points (bp). A 0.25 pp rate cut is 25 bp.
Can I use this for conversion-rate changes?
Yes — it clarifies whether a shop “rose 2%” or “rose two points from 10% to 12%.”
Does it work for VAT rate announcements?
Yes. Saying VAT (value-added tax) rose by two percentage points is clearer than saying it rose by two percent when the old rate was already a percent.