Basic Percentage Calculator
Calculate percentages quickly and easily. Find what percentage of one number equals another number, perfect for calculating discounts, tips, or proportions.
Result
Common Uses:
- • Calculate discounts on purchases (20% off $100)
- • Figure out tax amounts (8% sales tax)
- • Calculate tips at restaurants (15% tip)
- • Determine portion sizes (30% of daily calories)
Examples:
- • 20% of 100 = 20
- • 15% of 200 = 30
- • 75% of 80 = 60
Percentage Finder
Calculate what percentage one number is of another.
Result
Common Uses:
- • Calculate test scores (correct answers out of total questions)
- • Track progress towards goals (current savings vs target)
- • Analyze market share (your sales vs total market)
- • Calculate completion rates (tasks completed vs total tasks)
Examples:
- • 20 is 40% of 50
- • 30 is 60% of 50
- • 75 is 25% of 300
Percentage Change Calculator
Calculate the percentage increase or decrease between two numbers.
Result
Common Uses:
- • Track price changes (original vs new price)
- • Monitor business growth (year-over-year revenue)
- • Analyze performance improvements (before vs after metrics)
- • Calculate weight loss/gain percentage (starting vs current weight)
Examples:
- • Change from 100 to 150 = 50% increase
- • Change from 200 to 160 = 20% decrease
- • Change from 50 to 75 = 50% increase
Frequently Asked Questions
What is a Percentage Calculator?
A percentage calculator is a tool that helps you quickly perform percentage-related calculations, such as finding a percentage of a number, determining percentage increases or decreases, and calculating percentage differences.
How do I calculate a percentage of a number?
To calculate a percentage of a number, multiply the number by the percentage and divide by 100.
Example: To find 25% of 200: (25 × 200) ÷ 100 = 50.
What is the Percentage Finder used for?
The Percentage Finder helps you determine what percentage one number is of another.
Example: If you scored 40 out of 50 in a test, the percentage would be: (40 ÷ 50) × 100 = 80%.
How do I calculate Percentage Change?
The Percentage Change Calculator finds the percentage increase or decrease between two numbers.
Formula: ((New Value - Old Value) / Old Value) × 100
Example: If a product's price increases from $50 to $75:
((75 - 50) / 50) × 100 = 50% increase.
Can I use this calculator to calculate discounts and sales prices?
Yes! If you want to calculate discounts, use the Basic Percentage Calculator:
Example: If a $100 item is on sale for 20% off, the discount amount is: (100 × 20) ÷ 100 = 20.
The final price is $80.
What are common real-world uses of percentage calculations?
- 🛍️ Shopping Discounts
- 💰 Taxes & Tips
- 📈 Finance & Investments
- 📊 Data & Analytics
- 🏋️ Health & Fitness
How accurate is this calculator?
Our percentage calculator uses precise mathematical formulas to ensure accuracy. However, minor rounding differences may occur in some cases.
Is this tool mobile-friendly?
Yes! This percentage calculator works seamlessly on phones, tablets, and desktops.
Do I need to download any software?
No, you can use this calculator directly from your browser without installing anything.
Is this calculator free?
Yes! Our percentage calculator is 100% free and does not require registration or payment.