Percentage Calculator
Calculate percentages instantly with step-by-step solutions. Trusted by 1,00,000+ users.
Basic Percentage: What is X% of Y?
Example: 20% of 150 = 30
Formula: (20 ÷ 100) × 150 = 30Percentage Increase: From X to Y
Example: From 100 to 150 = 50% increase
Formula: [(150 - 100) ÷ 100] × 100 = 50%Percentage Decrease: From X to Y
Example: From 200 to 150 = 25% decrease
Formula: [(200 - 150) ÷ 200] × 100 = 25%Find Percentage: X is what % of Y?
Example: 30 is what % of 150? = 20%
Formula: (30 ÷ 150) × 100 = 20%Live Visualization
Calculation Results
How to Use Percentage Calculator?
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Frequently Asked Questions
To calculate X% of Y, multiply Y by X and divide by 100. For example, 20% of 150 = (20 × 150) ÷ 100 = 30.
Percentage increase = [(New Value - Original Value) ÷ Original Value] × 100. For example, from 100 to 150 is a 50% increase.
Percentage decrease = [(Original Value - New Value) ÷ Original Value] × 100. For example, from 200 to 150 is a 25% decrease.
Divide the part value (X) by the whole value (Y) and multiply by 100: (X ÷ Y) × 100. For example, 30 is (30 ÷ 150) × 100 = 20% of 150.
Yes, use the "Share Calculation URL" button. It encodes your active type and input values into the link so anyone opening it sees the exact same result instantly.
Clicking "Copy Step-by-Step Solution" compiles the formula, input variables, mathematical breakdown, and final verdict into clean, structured plain text ready to paste anywhere.
Yes, it's completely free with no registration, limits, or hidden fees. Use it as many times as you need.