Smart Percentage Calculator
All-in-One % Tool for Quick Calculations
Percentage Increase Calculator
By what percent did a value grow?
Example: Salary increased from $50,000 to $55,000 = 10% increase
Frequently Asked Questions
How to calculate percentage increase?
Use the formula: (New Value - Original Value) ÷ Original Value × 100. For example, if your salary increased from $50,000 to $55,000, the percentage increase is 10%.
How to find original price before discount?
Divide the final price by (1 - discount percentage as decimal). If you paid $80 after a 20% discount, the original price was $80 ÷ 0.8 = $100.
What's the difference between markup and margin?
Markup is calculated on cost price, while margin is calculated on selling price. A 50% markup on $100 cost = $150 selling price, which is a 33.3% margin.
How much should I tip?
Standard tipping rates vary: 15-18% for good service, 20% or more for excellent service. Use our tip calculator to quickly compute the exact amount.