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Percentage Calculator

Six different percentage calculators in one — pick the type you need.

① What is X% of Y?

What is

% of

Number

Result

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② X is what % of Y?

Number (X)

is what % of

Number (Y)

Result

—

③ Percentage Change (Increase / Decrease)

From Value

To Value

Percentage Change

—

④ Increase / Decrease a Number by %

Original Value

Operation

Percent (%)

Result

—

⑤ What % is X of the total (Y)?

Part (X)

Total (Y)

Result

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⑥ Reverse Percentage — Find Original Value

Final Value

After % change

Direction

Original Value

—

Percentage Formulas

X% of Y = (X/100) × Y

X is what % of Y = (X/Y) × 100

% Change = ((New−Old)/|Old|) × 100

Increase by % = Value × (1 + %/100)

Decrease by % = Value × (1 − %/100)