Percentage Calculator
Find percentages, percentage change and reverse percentages — all in one place.
Percentages are everywhere: a ₹200 shirt at 20% off costs ₹160; a salary rising from ₹50,000 to ₹58,000 is a 16% hike. The three questions this answers — ‘what is X% of Y’, ‘what % is X of Y’, and ‘X is Y% of what’ — cover nearly every daily use.
How to use the percentage calculator
- Pick the calculation type.
- Enter your two numbers.
- Get the answer with the formula shown.
Percentage Calculator — FAQs
How do I calculate X% of Y?
Multiply: (X ÷ 100) × Y. So 20% of 200 = 0.20 × 200 = 40.
How do I find percentage increase?
((New − Old) ÷ Old) × 100. From 50,000 to 58,000: (8,000 ÷ 50,000) × 100 = 16%.
What is reverse percentage?
Finding the original before a % change: if ₹160 is the price after 20% off, the original was 160 ÷ 0.80 = ₹200.
Why do successive discounts not add up?
20% then 10% off isn’t 30% off — the second discount applies to the reduced price: 0.8 × 0.9 = 0.72, i.e. 28% off.
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