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Percentage Calculator

10 different percentage calculations — instant results, no login needed

🧮 Basic Percentage Calculators
💡

What is X% of Y?

Find the percentage value of a number

Formula: Result = (X / 100) × Y
% of
Result
50
25% of 200 = 50
🔍

X is what % of Y?

Find what percentage X is of Y

Formula: % = (X / Y) × 100
is what % of
Result
25%
50 is 25% of 200
❓

X is Y% of what number?

Find the original total from a percentage

Formula: Total = (X / Y) × 100
is % of what?
Result
200
50 is 25% of 200
📈 Percentage Change & Difference
📈

Percentage Increase

How much did a value increase?

Formula: % Increase = ((New - Old) / Old) × 100
Percentage Change
+50%
Increased by 50
📉

Percentage Decrease

How much did a value decrease?

Formula: % Decrease = ((Old - New) / Old) × 100
Percentage Change
-25%
Decreased by 50
↔️

Percentage Difference

Difference between two values

Formula: % Diff = |V1 - V2| / ((V1+V2)/2) × 100
Percentage Difference
40%
Difference between 100 and 150
➕ Add & Subtract Percentage
➕

Add % to a Number

Increase a number by a percentage

Formula: Result = X + (X × Y / 100)
%
After Adding 18%
1,180
1000 + 180 = 1,180
➖

Subtract % from a Number

Decrease a number by a percentage

Formula: Result = X - (X × Y / 100)
%
After Subtracting 20%
800
1000 - 200 = 800
🔢

Fraction to Percentage

Convert any fraction to a percentage

Formula: % = (Numerator / Denominator) × 100
÷ = ?%
Percentage
75%
3/4 = 75%
💰 Finance Percentage Calculators
🏷️

Discount Price Calculator

Find the final price after discount

Formula: Final = Price - (Price × Discount%/100)
%
Final Price
₹3,500
You save ₹1,500 (30% off)
📝

Marks Percentage

Calculate your exam score percentage

Formula: % = (Marks Obtained / Total Marks) × 100
Score Percentage
75%
Grade: A
💹

Profit / Loss Percentage

Calculate profit or loss on investment

Formula: P/L% = ((SP - CP) / CP) × 100
Result
+25% Profit
Profit: ₹200
⚡ Quick Percentage Reference
1%
Divide by 100
5%
Divide by 20
10%
Divide by 10
12.5%
Divide by 8
20%
Divide by 5
25%
Divide by 4
33.33%
Divide by 3
50%
Divide by 2
75%
¾ of value
100%
Full value
125%
1.25× value
200%
Double value
💡 Percentage Tips & Tricks
🔄

Commutative Property

X% of Y = Y% of X
So 25% of 80 = 80% of 25 = 20

⚡

Quick 10% Trick

To find 10%, just move the decimal one place left. 10% of 350 = 35

🎯

GST Calculation

Price with 18% GST = Price × 1.18
Remove GST: Price ÷ 1.18

📊

Percentage Back

If something increased by 20%, to get back: divide by 1.20, not decrease by 20%!

🏷️

Successive Discounts

30% + 20% off ≠ 50% off.
It's actually: 1 - 0.7×0.8 = 44% off

💡

Mental Math Hack

15% = 10% + 5%
For 15% of 200: 20 + 10 = 30 ✓

🕓 Calculation History

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