Percentage Calculator
Calculate percentages easily. Find what is X% of Y, percentage increase/decrease, and what percent one number is of another. Fast and accurate.
Example: 25% of 200 = 50
Enter values to see result
Quick Tips
• 10% = Divide by 10
• 25% = Divide by 4
• 50% = Divide by 2
• 1% = Move decimal 2 left
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✨ Key Features
4 Calculation Modes
Calculate percentages, increases, decreases, and find ratios
Instant Results
See results immediately as you type - no button needed
Easy to Use
Simple interface with clear examples for each calculation type
Always Free
No registration or payment required - use unlimited times
How to Use the Percentage Calculator
Our percentage calculator makes it easy to calculate percentages in four different ways. Choose your calculation type, enter your numbers, and see instant results. Perfect for shopping discounts, grade calculations, financial analysis, and everyday math.
Four Calculation Modes
1. What is X% of Y? - Find a percentage of a number (e.g., 25% of 200 = 50)
2. X is what % of Y? - Find what percentage one number is of another (e.g., 50 is 25% of 200)
3. Percentage Increase - Calculate growth percentage (e.g., 100 to 150 = +50%)
4. Percentage Decrease - Calculate reduction percentage (e.g., 200 to 150 = -25%)
Common Uses
Shopping: Calculate sale prices and discounts (30% off $100 = $70 final price)
Grades: Convert scores to percentages (45/60 = 75%)
Finance: Calculate investment returns and interest rates
Tips: Figure out restaurant gratuity (15% of $80 bill = $12 tip)
Taxes: Add sales tax to purchases (8% tax on $50 = $4 tax, $54 total)
Quick Percentage Tricks
10% trick: Move decimal one place left (10% of 250 = 25)
50% trick: Divide by 2 (50% of 80 = 40)
25% trick: Divide by 4 (25% of 100 = 25)
1% trick: Move decimal two places left (1% of 500 = 5)