Versatile Percentage Calculator
Perform percentage of a number, percentage change, reverse percentage and distribution. Explore insightful visualizations & examples for each operation.
1. What is X% of Y?
Real-world Example:
If you got 20 out of 80 points in a quiz, that's 25% of the total possible. 25% of 80 = 20.
How Are These Percentage Calculations Used?
- Shopping: Calculating sale discounts, tax rates, and price markups.
- Finance: Evaluating investment returns, loan interest changes, and budgeting.
- Health & Nutrition: Tracking macronutrient percentages or weight changes.
- Education: Interpreting test scores, pass/fail rates, and grading curves.
- Work & Productivity: Measuring progress, completion rates, or performance improvements.
Common Percentage Formulas
Percent of a Number:
X% of Y = Y × (X / 100)
X% of Y = Y × (X / 100)
Percentage Change:
((New - Old) / |Old|) × 100
((New - Old) / |Old|) × 100
Reverse Percent:
Final Value ÷ (% / 100)
Final Value ÷ (% / 100)
Percentage Share:
Part ÷ Total × 100
Part ÷ Total × 100
See Percentages In Action
Understanding how percentage calculations appear in shopping, finance, and daily activities can give you a real edge!