Fetch the required numbers, and the percentage calculator will use percentage formulas to find the percent value of an unknown variable in the equation, with the steps displayed.
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The Percentage Calculator helps you quickly find accurate percent values in any scenario. Using basic percentage formulas, this tool calculates unknown values when two inputs are provided. You can also easily add or subtract percentages from any number in seconds.
A percentage represents a number, fraction, or ratio expressed as a part of 100. Symbol: %
If a pizza has 8 slices and you eat 2, you have eaten 25% of the pizza.
In algebra, the standard formula is:
P (Percentage) × V1 = V2
Find 25 percent of 50:
P × 50 = ?
P = (25 / 100) × 50 = 0.25 × 50 = 12.5
Y = P% × X
Convert P% into decimal form by dividing by 100, then multiply by X.
Example: 20% of 50 → Y = 0.2 × 50 = 10
P% = Y ÷ X × 100
Example: 15 is what percent of 60 → P% = 15 ÷ 60 × 100 = 25%
X = Y ÷ P%
Example: 7 is 66% of what → X = 7 ÷ 0.66 ≈ 10.61
P% = Y ÷ X × 100
Example: What percent of 25 is 7 → P% = 7 ÷ 25 × 100 = 28%
X = Y ÷ P%
Example: 30% of what is 9 → X = 9 ÷ 0.3 = 30
Y = P% × X
Example: 7% of 27 → Y = 0.07 × 27 = 1.89
X = Y ÷ P%
Example: 5 of what is 13% → X = 5 ÷ 0.13 ≈ 38.46
Y = P% × X
Example: What of 26 is 12% → Y = 0.12 × 26 = 3.12
P% = Y ÷ X × 100
Example: 8 of 12 → P% = 8 ÷ 12 × 100 ≈ 66.67%
Percentage Difference formula:
Percentage Difference = |V1 - V2| ÷ ((V1 + V2) / 2) × 100
Percentages help understand proportions, track changes, and compare quantities efficiently in daily life, finance, and business.
The calculator above automatically handles both conversions.
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