Percentage Calculator

Calculate percentages, percentage changes, and percentage differences.

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Table of Contents

1 Percentage Concept
2 Calculation Methods
3 Percentage - Practical Examples
Concept

Percentage Concept

A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign "%". Percentages are used to express how large or small one quantity is relative to another quantity.

Percentage Formula:
Percentage = (Value / Total) × 100
Steps

Calculation Methods

Here are the methods for calculating percentages:

  1. 1
    Percentage of a Value: Multiply the value by the percentage and divide by 100
  2. 2
    Percentage Change: Divide the difference by the original value and multiply by 100
  3. 3
    Percentage Difference: Divide the absolute difference by the average and multiply by 100

For example, to calculate 20% of 100:

Example Calculation:
20% of 100 = (20 × 100) ÷ 100 = 20
Examples

Percentage - Practical Examples

Example 1 Discounts

Calculating discounts on products using percentages.

20% off $100 = $20 discount

Example 2 Tax Calculations

Calculating sales tax on purchases.

8% tax on $50 = $4 tax

Example 3 Grade Calculations

Calculating grades based on percentage scores.

85% of 100 points = 85 points

Tools

Mathematics Calculators

Fraction To Percent Mean Median Mode Decimal To Percent Exponent Standard Form

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