Alden Bradford Percentage Calculator

Enter any two values below and click “Calculate” to find the third.

of =

Common Percentage Calculations

What is of

is what % of

is of what?

Percentage Difference

Value 1:

Value 2:

Percentage Increase / Decrease

Increase Decrease =

What is a Percentage?

A percentage represents a fraction of 100. It expresses a ratio, often marked by the symbol “%”. For example, 35% is equivalent to 0.35 or 35/100.

Percentage Formula

P × V₁ = V₂

Where P is the percentage (in decimal), V₁ is the base, and V₂ is the result. If solving for P, multiply by 100 to get the final percentage.

Percentage Difference

|V₁ – V₂| / ((V₁ + V₂) / 2) × 100

Percentage Change

To increase a number by 10%: 500 × (1 + 0.10) = 550
To decrease a number by 10%: 500 × (1 − 0.10) = 450