How do I calculate percentage increase?

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Percentage Calculator

Calculate percentages, percentage change, and marks percentage instantly.

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Part (X)

Whole (Y)

Result

12.50%

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Percentage = (Part / Whole) × 100.

For exam marks, always confirm whether the total is out of the maximum marks or the maximum minus any optional section.

Mixing up percentage points with percentage change — an increase from 20% to 25% is 5 percentage points but a 25% relative increase.

Percentage change = ((New value − Old value) / Old value) × 100. A negative result means a decrease.

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