In-depth guide

Percent calculations without the mental gymnastics

Percent means “per hundred.” Finance headlines mix percentage points (absolute) with relative percent changes—learn to spot which is which.

Open the calculator

Three primitives

Part/whole to percent; percent of a quantity; percent change between two values. Each maps to a simple formula—keep decimals consistent.

FAQ

Is this professional advice?
No—educational estimates only.
Why might numbers differ from another app?
Rounding, assumptions, and unit conventions vary.
Can I rely on this for legal or medical decisions?
No—consult qualified professionals.

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