Calculator category

Percentage Calculators

Calculate percentages, percentage changes, discounts, and attendance targets with clear formulas.

Percentage questions appear in shopping, reports, finance, school, and everyday comparisons. The tools in this section handle the most common percentage relationships and explain which value belongs in each part of the formula.

For a reliable comparison, use values measured in the same units and pay attention to the starting value when calculating percentage change.

All Percentage tools

2 calculators in this category

Percentage

Percentage Calculator

Find a percentage of a number, determine what percent one value is of another, or measure percentage change.

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Percentage

Attendance Calculator

Calculate attendance percentage and determine how many classes can be missed or must be attended to reach a target.

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Good starting points

Popular percentage tools

Percentage CalculatorFind a percentage of a number, determine what percent one value is of another, or measure percentage change.

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Common questions

Percentage calculator questions

What does percent mean?

Percent means per hundred. For example, 25% is 25 out of 100, which is the decimal 0.25.

Is percentage change symmetric?

No. A rise from 80 to 100 is 25%, while a fall from 100 to 80 is 20%, because the starting values differ.

How do I turn a percentage into a decimal?

Divide it by 100. For example, 7.5% becomes 0.075.