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PERCENTAGE
CALCULATOR
6 ways to calculate percentages — all free, instant results
What is X% of Y?
Percentage
%
of
Number
Result
—
Formula: (percentage ÷ 100) × number
X is what % of Y?
Value (X)
Total (Y)
Percentage
—
Formula: (X ÷ Y) × 100
Percentage Change
Original Value
New Value
Change
—
Formula: ((new − original) ÷ |original|) × 100
Increase / Decrease by %
Starting Number
Percentage
%
Increased by %
—
Decreased by %
—
Percentage Difference
Value A
Value B
Difference
—
Formula: |A − B| ÷ ((A + B) / 2) × 100
Find Original Value
Result Value
Was X% of original
%
Original Value
—
Formula: result ÷ (percentage ÷ 100)