Free Percentage Calculators & Guides for Every Calculation
Calculate percentage changes, increases, decreases, and growth rates instantly. Step-by-step breakdowns, real-world examples, and comprehensive guides.
Most Popular Calculators
Quick access to our most-used percentage calculation tools
Percentage Change Calculator
Calculate the percentage increase or decrease between two values
Use CalculatorPercentage Increase Calculator
Calculate percentage growth, gains, and markup percentages
Use CalculatorPercentage Decrease Calculator
Calculate discounts, savings, and percentage reductions
Use CalculatorPercentage Difference Calculator
Compare two values with symmetric percentage difference
Use CalculatorHow It Works
Three simple steps to get accurate percentage calculations
Choose Your Calculator
Select the percentage calculator that matches your needs - from basic changes to complex growth rates
Enter Your Values
Input your numbers and get instant results with real-time validation and helpful error messages
Understand the Results
See step-by-step breakdowns, formulas explained, and learn how to apply the calculation
Comprehensive Percentage Guides
Learn the formulas, see examples, and master percentage calculations
The Complete Guide to Percentage Change
Master percentage change calculations with formulas, examples, and real-world applications
15 min read
Read GuideHow to Calculate Percentage Increase
Learn to calculate growth, markup, and percentage increases for business and investing
12 min read
Read GuideHow to Calculate Percentage Decrease
Calculate discounts, cost reductions, and percentage decreases accurately
10 min read
Read GuideHow to Calculate Growth Rate (CAGR)
Master CAGR and annualized growth rate calculations for investment analysis
15 min read
Read GuidePercentage Calculators for Every Industry
Trusted by professionals across finance, business, education, and more
Finance & Investing
Track portfolio performance, stock changes, and investment returns
- Stock returns
- Portfolio growth
- Investment analysis
Business & Analytics
Measure KPIs, revenue growth, and business metrics
- Revenue growth
- KPI tracking
- Performance metrics
E-commerce & Retail
Calculate markups, discounts, and conversion rates
- Pricing strategies
- Discount calculations
- Sales analysis
Education & Research
Learn percentage concepts and analyze research data
- Homework help
- Lab calculations
- Statistical analysis
Personal Finance
Calculate savings, salary changes, and budgeting
- Salary increases
- Savings goals
- Budget tracking
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Easy to Use
Intuitive interface with real-time results and helpful guidance
Comprehensive Education
Not just calculators - complete guides with examples and applications
Ready to Calculate?
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