Basic Percentages

Core percentage calculators: percent of, what percent, increase/decrease.

11 Calculators Available

Available Calculators

Percent Of Calculator

Calculate X% of Y with step-by-step explanation and real-world examples.

Formula

result = (percentage / 100) × number

Example

percentage: 20, number: 500, result: 100

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Percentage Increase Calculator

Calculate the percentage increase between two numbers. Perfect for salary raises, price increases, and growth rates.

Formula

percentage increase = ((new value - original value) / original value) × 100

Example

originalValue: 100, newValue: 125, increase: 25, increaseAmount: 25

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Percentage Decrease Calculator

Calculate the percentage decrease between two numbers. Ideal for weight loss tracking, price drops, and decline rates.

Formula

percentage decrease = ((original value - new value) / original value) × 100

Example

originalValue: 200, newValue: 150, decrease: 25, decreaseAmount: 50

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Percentage Difference Calculator

Calculate the absolute percentage difference between two values. Great for comparing prices, temperatures, and scores.

Formula

percentage difference = |V1 - V2| / ((V1 + V2) / 2) × 100

Example

value1: 100, value2: 120, difference: 18.18

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What Percent Calculator

Find what percent one number is of another. Perfect for calculating test scores, completion rates, and proportions.

Formula

percentage = (part / total) × 100

Example

part: 25, total: 200, percentage: 12.5

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Reverse Percentage Calculator

Find the original value before a percentage increase or decrease. Perfect for finding pre-discount prices and original amounts.

Formula

Original Value = Final Value / (1 + Percentage/100) or Final Value / (1 - Percentage/100)

Example

finalValue: 120, percentage: 20, originalValue: 100

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Percentage of Total Calculator

Calculate what percentage each value represents of the total. Perfect for budget breakdowns and data analysis.

Formula

Percentage = (Individual Value / Total) × 100

Example

value1: 30, value2: 70, total: 100, percent1: 30, percent2: 70

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Fraction to Percent Calculator

Convert fractions to percentages instantly. Enter numerator and denominator to get the percentage equivalent.

Formula

Percentage = (Numerator / Denominator) × 100

Example

numerator: 3, denominator: 4, percentage: 75

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Percent to Decimal Calculator

Convert percentages to decimals instantly. Essential for mathematical calculations and programming.

Formula

Decimal = Percentage / 100

Example

percentage: 75, decimal: 0.75

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Decimal to Percent Calculator

Convert decimals to percentages instantly. Enter any decimal to get the percentage equivalent.

Formula

Percentage = Decimal × 100

Example

decimal: 0.85, percentage: 85

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General Percentage Calculator

All-in-one percentage calculator. Calculate any percentage operation including increase, decrease, difference, and more.

Formula

Multiple formulas depending on calculation type

Example

operation: calculate, value1: 50, value2: 100, result: 50

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Explore Other Categories

Financial Calculators

ROI, profit margin, compound interest, and other financial percentage calculators.

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Education Calculators

Grade percentages, GPA, test scores, and academic percentage tools.

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Daily Use Calculators

Tip, percentage change, ratio, and other everyday percentage calculations.

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