Percentage Calculator
Easily calculate percentage changes with our percentage change calculator. Enter the original and new values to quickly determine increase or decrease for accurate analysis.
What is a Percentage Calculator?
A Percentage Calculator is a tool that helps you quickly calculate percentages, percentage increase or decrease, and convert fractions and decimals into percentages. It is widely used in finance, shopping, statistics, and academics.
How to Calculate Percentage
To calculate percentage, use the formula: (Part ÷ Whole) × 100. Example: If you scored 45 out of 50 marks, your percentage is (45 ÷ 50) × 100 = 90%.
Formulas
Percentage Calculations
Example
Percentage Calculator
A percentage calculator helps answer common percentage questions, such as finding what percent a number is of another, calculating percentage change, or determining a value based on a percentage.
Real-Life Examples
- What is A% of B?E.g., 20% of 150 = 0.20 × 150 = 30
- A is what % of B?E.g., 50 is what % of 200? → (50 ÷ 200) × 100 = 25%
- What is B% of A?E.g., What is 30% of 80? → 0.30 × 80 = 24
- From A to B (Change %)E.g., Price increased from 50 to 60 → ((60 − 50) ÷ 50) × 100 = 20% increase
- A is B% of what?E.g., 25 is 20% of what? → 25 ÷ 0.20 = 125
Key Insight
Percentage calculations are useful for finance, shopping discounts, statistics, and everyday comparisons. For example, knowing that 50 is 25% of 200 helps in budgeting and understanding proportions.