Percentage Change Calculator

Determine the percent change from an original value to a new value, useful for tracking growth, price changes, or performance over time.

Inputs
Results
Percentage Change
50%

Try an example

Formula

% Change = (New − Original) / |Original| × 100

Learn How This Works

The Three Types of Percentage Problems, Solved

Every percentage question breaks down into one of three patterns — here's how to recognize and solve each one.

Frequently Asked Questions

Related Calculators

Percentage Calculator

Find what percentage one number is of another, or calculate percentage change.

Quadratic Equation Solver

Solve ax² + bx + c = 0 for real roots using the quadratic formula.

Average (Mean) Calculator

Calculate the average of up to 10 numbers.

Standard Deviation Calculator

Calculate the population standard deviation of up to 5 numbers.

Circle Area & Circumference Calculator

Calculate the area, circumference, and diameter of a circle from its radius.

Triangle Area Calculator

Calculate a triangle's area from three side lengths using Heron's formula.