Percentage Calculator

Five powerful percentage calculators in one place. Calculate percentages, find percentage change, increase, decrease, and more — instantly with formulas shown.

What is X% of a Number?

What is % of ?

e.g. What is 15% of 2000? = 300

X is What Percent of Y?

is what % of ?

e.g. 30 is what % of 200? = 15%

Percentage Change (Increase / Decrease)

From to

e.g. From 500 to 750 = 50% increase

Increase a Number by X%

increased by %

e.g. 1000 + 20% = 1200

Decrease a Number by X%

decreased by %

e.g. 1000 - 10% = 900

Percentage Formulas Explained

X% of Y: Result = (X ÷ 100) × Y
X is what % of Y: Result = (X ÷ Y) × 100
Percentage Change: ((New − Old) ÷ |Old|) × 100
Increase by X%: Result = Y × (1 + X/100)
Decrease by X%: Result = Y × (1 − X/100)

Common Percentage Use Cases in India

GST Calculation: Item price + 18% GST
Discount: Sale price after 30% discount
Exam Marks: You scored 85 out of 100 = 85%
Salary Hike: Salary increased from ₹50,000 to ₹60,000 = 20% hike
Investment Returns: Portfolio grew from ₹1 lakh to ₹1.5 lakh = 50% return
EMI: Loan interest percentage calculation