Basic Percentage Calculator
Enter any two values to calculate the third.
Formula:
Percentage × Value = Result
Common Percentage Phrases
Choose a phrase type and enter the required values.
Formulas:
“What is X% of Y?” → X% × Y = Result
“X is what % of Y?” → (X ÷ Y) × 100 = Result %
“X is Y% of what?” → X ÷ (Y% ÷ 100) = Result
Percentage Difference Calculator
Enter two values to calculate the percentage difference between them.
Formula:
Percentage Difference = |Value1 – Value2| ÷ ((Value1 + Value2) ÷ 2) × 100
Note: This shows the percentage difference relative to the average of the two values.
Percentage Change Calculator
Calculate percentage increase or decrease.
Or calculate a specific change:
Formulas:
Percentage Change = ((New Value – Original Value) ÷ Original Value) × 100
Increase: Original × (1 + (Percentage ÷ 100)) = Result
Decrease: Original × (1 – (Percentage ÷ 100)) = Result
Percentage Calculator
To calculate percentages, provide any two values from the formula below, and solve for the third:
Percentage Formula:
P is the percentage.
V₁ is the original value.
V₂ is the resulting value after applying the percentage.
Common Percentage Calculations
What is P% of V?
V₂ is what % of V₁?
V₂ is P% of what?
Percentage Difference Calculator
The percentage difference indicates the relative difference between two numbers:
Example:
Percentage Change Calculator
Percentage change measures how much a number increases or decreases relative to its initial value:
Increase example: 500 increased by 10%:
Decrease example: 500 decreased by 10%:
Understanding Percentages
A percentage (%) represents a fraction of 100, expressing a dimensionless ratio between two numbers. For example, 35% equals 0.35 (decimal) or (fraction).
Practical Example
If 25 out of 50 students are male:
Multiply by 100 to convert to percentage:
Thus, 50% of the students are male.