Percentage Calculator
Calculate percentage increases, decreases, and ratios with our comprehensive percentage calculator suite. Perfect for finance, marketing, and everyday calculations.
Increase/Decrease
Calculate percentage change between two values
Percentage Change
Enter values to see percentage change
Percentage Change
Formula: ((New Value - Original Value) / Original Value) × 100
Use this to calculate the percentage increase or decrease between two values.
Positive results indicate an increase, negative results indicate a decrease.
Percentage Of
Formula: (Part Value / Total Value) × 100
Find what percentage one number represents of another number.
Commonly used for calculating proportions and ratios.
What Percent
Formula: (X / Y) × 100
Calculate what percentage X represents of Y.
Similar to "Percentage Of" but with different input labeling for clarity.
Common Use Cases
Business & Finance
Calculate profit margins, revenue growth, expense reductions, and financial performance metrics.
Marketing Analytics
Measure campaign performance improvements, conversion rate changes, and audience engagement growth.
Academic & Research
Analyze data changes, calculate survey response rates, and measure statistical improvements.
Everyday Calculations
Calculate discounts, tips, tax amounts, and compare prices or quantities in daily life.