Percentage Calculator
Common Percentage Calculations:
• What is X% of Y? → (X/100) × Y
• X is what % of Y? → (X/Y) × 100
• Percentage increase/decrease → ((New - Old) / Old) × 100
About This Tool
Calculate percentages for common scenarios:
- Sales discounts (20% off $50)
- Tax calculations (8.5% sales tax)
- Tip calculator (15% of bill)
- Grade calculations (85 out of 100)
- Price increases/decreases