Percentage Calculator
Calculate percentages, find percentage of a value, or calculate percentage change.
Input Values
%
Results
Enter values to see results.
⚠️ Results are indicative only. Consult a qualified professional before making any decisions.
What is this Calculator?
The Percentage Calculator helps you calculate percentage of a value, find what percentage one number is of another, and compute percentage increase or decrease. It is useful for calculating discounts, marks, tax, profit, and more.
How to Use
1
Enter Value: Enter the base number (e.g. 500).
2
Enter Percentage: Enter the percentage you want to calculate (e.g. 20%).
3
View Results: See the percentage amount, value after increase, and value after decrease.
Frequently Asked Questions
Percentage of a number = (Value × Percentage) ÷ 100. E.g., 20% of 500 = (500 × 20) ÷ 100 = 100.
Percentage Change = ((New Value − Old Value) ÷ Old Value) × 100. If positive, it is a percentage increase. If negative, it is a percentage decrease.
Formula: (Part ÷ Whole) × 100. E.g., what % is 150 of 500? → (150 ÷ 500) × 100 = 30%.
Discounted Price = Original Price × (1 − Discount% ÷ 100). E.g., 20% discount on ₹500 → ₹500 × 0.8 = ₹400.
Percentage = (Total Marks Obtained ÷ Maximum Marks) × 100. E.g., 450 out of 600 → (450 ÷ 600) × 100 = 75%.
A percentage point is the arithmetic difference between two percentages. E.g., if interest rate rises from 6% to 8%, it increased by 2 percentage points (but 33.3% in relative terms).