Advanced Percentage Calculator 📊
Standard Percentage Calculator
Calculate basic percentage problems with these tools.
✖️ What is X% of Y?
Find the portion of a whole number when you know the percentage.
Formula: (X% × Y) = Result
Example: What is 20% of 150?
(20% × 150) = 0.20 × 150 = 30
(20% × 150) = 0.20 × 150 = 30
⁉️ X is what % of Y?
Find what percentage one number is of another.
Formula: (X ÷ Y) × 100% = Result
Example: 25 is what % of 200?
(25 ÷ 200) × 100% = 0.125 × 100% = 12.5%
(25 ÷ 200) × 100% = 0.125 × 100% = 12.5%
🔄 X is Y% of what?
Find the original number when you know the percentage and the result.
Formula: X ÷ (Y% ÷ 100) = Result
Example: 60 is 15% of what?
60 ÷ (15% ÷ 100) = 60 ÷ 0.15 = 400
60 ÷ (15% ÷ 100) = 60 ÷ 0.15 = 400
📈📉 % Increase/Decrease
Calculate the percentage increase or decrease between two numbers.
Formula: ((Final - Initial) ÷ Initial) × 100% = Result
Example: Value changed from 80 to 100
((100 - 80) ÷ 80) × 100% = (20 ÷ 80) × 100% = 25% increase
((100 - 80) ÷ 80) × 100% = (20 ÷ 80) × 100% = 25% increase
Percentage in Common Phrases
Calculate percentages from everyday expressions.
➕ What is X plus Y%?
Increase a number by a certain percentage.
Formula: X + (X × Y%) = Result
Example: What is 200 plus 10%?
200 + (200 × 10%) = 200 + 20 = 220
200 + (200 × 10%) = 200 + 20 = 220
➖ What is X minus Y%?
Decrease a number by a certain percentage.
Formula: X - (X × Y%) = Result
Example: What is 200 minus 15%?
200 - (200 × 15%) = 200 - 30 = 170
200 - (200 × 15%) = 200 - 30 = 170
⏫ X is Y% greater than what?
Find the original number before a percentage increase.
Formula: X ÷ (1 + (Y% ÷ 100)) = Result
Example: 110 is 10% greater than what?
110 ÷ (1 + 0.10) = 110 ÷ 1.10 = 100
110 ÷ (1 + 0.10) = 110 ÷ 1.10 = 100
⏬ X is Y% less than what?
Find the original number before a percentage decrease.
Formula: X ÷ (1 - (Y% ÷ 100)) = Result
Example: 90 is 10% less than what?
90 ÷ (1 - 0.10) = 90 ÷ 0.90 = 100
90 ÷ (1 - 0.10) = 90 ÷ 0.90 = 100
Percentage Difference Calculator
Calculate the percentage difference between two values.
🔄 Percentage Difference
Calculate the percentage difference between two numbers relative to their average.
Formula: |(Value1 - Value2)| ÷ ((Value1 + Value2) ÷ 2) × 100% = Result
Example: Difference between 80 and 100?
|80 - 100| ÷ ((80 + 100) ÷ 2) × 100% = 20 ÷ 90 × 100% ≈ 22.22%
|80 - 100| ÷ ((80 + 100) ÷ 2) × 100% = 20 ÷ 90 × 100% ≈ 22.22%
📶 Percentage Change
Calculate the percentage change from old value to new value.
Formula: ((New - Old) ÷ Old) × 100% = Result
Example: Change from 50 to 75?
((75 - 50) ÷ 50) × 100% = (25 ÷ 50) × 100% = 50% increase
((75 - 50) ÷ 50) × 100% = (25 ÷ 50) × 100% = 50% increase