Calculate Percentage Increase or Decrease
Calculate percentage increases, decreases, and ratios with our comprehensive percentage calculator suite. Perfect for finance, marketing, and everyday calculations.
Use this tool to quickly find percentage changes, what percentage one value is of another, and what percent one value is of a second value.
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.