📊 Percentage Calculator
Calculate Percentages, Increase, Decrease & More - Easy & Free
Select Calculation Type
📖 How to Use the Percentage Calculator
Our free percentage calculator makes it easy to calculate percentages for any situation.
Simple Steps:
- Choose Type: Click on one of the four tabs above to select your calculation type
- Enter Numbers: Fill in the required values in the input fields
- Calculate: Click the calculate button to see your result instantly!
💡 Calculator Tips:
- You can use decimal numbers for precise calculations
- Results are rounded to 2 decimal places
- Switch between calculation types using the tabs
- No need to add the % symbol - just enter numbers
📝 Calculation Examples
Example 1: What is 20% of 150?
Calculation: 20% × 150 = 30
Use Case: Calculating a 20% discount on a $150 item
Example 2: 30 is what % of 200?
Calculation: (30 ÷ 200) × 100 = 15%
Use Case: Finding what percentage 30 students are out of 200 total
Example 3: Percentage Increase from 50 to 75
Calculation: ((75-50) ÷ 50) × 100 = 50% increase
Use Case: Salary increased from $50,000 to $75,000
Example 4: Percentage Decrease from 100 to 80
Calculation: ((100-80) ÷ 100) × 100 = 20% decrease
Use Case: Price reduced from $100 to $80
🎯 Common Uses
Shopping & Discounts
Calculate sale prices and savings. If an item is 30% off, quickly find the final price.
Finance & Investing
Calculate investment returns, interest rates, and profit margins.
Academic Grades
Convert test scores to percentages and calculate grade requirements.
Business Analytics
Analyze sales growth, market share, and business metrics.
Health & Fitness
Track weight loss percentages and fitness goal progress.
❓ Frequently Asked Questions
Q: How do I calculate percentage?
Divide the part by the whole, then multiply by 100. For example: (25 ÷ 100) × 100 = 25%
Q: How do I calculate percentage increase?
Formula: ((New Value - Original) ÷ Original) × 100
Q: What is 20% of 150?
20% of 150 is 30. Calculation: (20 ÷ 100) × 150 = 30
Q: Can I use decimals?
Yes! The calculator fully supports decimal numbers like 15.5% or 123.45
🔍 Understanding Percentages
What is a Percentage?
A percentage is a way of expressing a number as a fraction of 100. The word "percent" means "per hundred."
Basic Percentage Formula
Percentage = (Part ÷ Whole) × 100
Real-World Applications
- Shopping: Calculating discounts during sales
- Finance: Understanding interest rates and returns
- Grades: Converting scores to percentages
- Business: Analyzing growth and profit margins
- Statistics: Interpreting data and surveys
Why Use This Calculator?
Our percentage calculator online offers:
- ✅ Instant accurate results
- ✅ Multiple calculation types
- ✅ Easy to use interface
- ✅ Completely free
- ✅ No registration required
