Percentage Calculator - All Percentage Calculations
Calculate percentages easily with our free calculator. Find percentage of a number, percentage change, and more with instant results.
What is X% of Y?
What is% of?
Answer:
30.00
X is what percent of Y?
is what percent of?
Answer:
20.00%
Percentage Change (Increase/Decrease)
Percentage Increase:
+25.00%
Add X% to a Number
Result:
1180.00
(1000 + 180.00)
Subtract X% from a Number
Result:
450.00
(500 - 50.00)
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Understanding Percentage Calculations
Percentages are used everywhere - from calculating discounts and tips to analyzing data and understanding statistics. Our calculator handles all common percentage problems.
Common Percentage Formulas
X% of Y = (X × Y) / 100
X is what % of Y = (X / Y) × 100
% Change = ((New - Old) / Old) × 100
Real-World Applications
- Shopping discounts and sale prices
- Restaurant tips and service charges
- Loan interest and EMI calculations
- Exam scores and grades
- Business profit margins
- Data analysis and statistics
Frequently Asked Questions
How do I calculate percentage of a number?
To find X% of Y, multiply Y by X and divide by 100. For example, 20% of 150 = 150 × 20 ÷ 100 = 30.
How do I calculate percentage increase?
Percentage increase = ((New Value - Original Value) / Original Value) × 100. For example, if price goes from ₹100 to ₹120, increase = ((120-100)/100) × 100 = 20%.
How do I calculate what percentage one number is of another?
To find what percentage X is of Y, divide X by Y and multiply by 100. For example, 25 is what percent of 200? Answer: (25/200) × 100 = 12.5%.
How do I calculate percentage decrease?
Percentage decrease = ((Original Value - New Value) / Original Value) × 100. For example, if price drops from ₹100 to ₹80, decrease = ((100-80)/100) × 100 = 20%.