13 FOCUSED TOOLS
Percentage & ratio calculators
Compare shares, rates and proportional changes.
Choose the right calculation
Choose the base before calculating. Percentage points compare two rates by subtraction, while percentage change divides a difference by an original value. Successive discounts apply one after another rather than adding together.
Find a tool for your question
Percentage Calculator
Find what a percentage of a number amounts to.
Percentage Change Calculator
Measure the percentage increase or decrease between two positive values.
Percentage Difference Calculator
Compare two positive measurements without choosing one as the baseline.
Reverse Percentage Calculator
Recover the original value before a percentage increase.
Fraction to Decimal Calculator
Divide a numerator by a denominator to express a fraction as a decimal.
Ratio Scaling Calculator
Scale the second part of a ratio when the first part changes.
Percentage Point Calculator
Find the percentage-point difference between two rates.
Weighted Percentage Calculator
Combine two percentages using their actual group sizes.
Successive Discounts Calculator
Calculate the final price after two discounts applied one after the other.
Percentage Composition Calculator
Find one component’s percentage of the sum of three components.
What Percent Calculator
Find what percentage one amount represents of another.
Percent of Goal Calculator
Express progress toward a positive numeric target.
Percentage of Percentage Calculator
Find the overall share represented by a percentage within another percentage.
Should I use percentage change or percentage points?
Use percentage change for relative movement from a baseline. Use percentage points for the direct difference between two percentage rates.
Useful next steps in other categories
Test Grade Percentage Calculator
Convert earned marks into a percentage of available marks.
Profit Margin Calculator
Calculate gross profit as a percentage of revenue.
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