Percentage Calculator - Calculate Percentages Free

Calculate percentages instantly. Discounts, tips, markups, percentage change and more. Free tool.

Common Calculations

• Discount - What is 25% off $100?
• Tip - What's 20% tip on $50?
• Percentage change - From 50 to 75 is what %?
• Markup - What's 30% markup on $40?

Common Formulas

Find X% of Y: Y × (X/100)

Find what % X is of Y: (X/Y) × 100

Find percentage change: ((New - Old) / Old) × 100