Percentage increase / decrease
Understand how much a value changed.
YOUR NUMBERS
Increase
Absolute change: 20
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THE HOWThe formula
Change = ((new − original) ÷ |original|) × 100
A practical example
From 80 to 100: (100 − 80) ÷ 80 × 100 = 25% increase.
What to keep in mind
The original value cannot be zero. Negative baselines use the absolute original value, so the sign reflects the direction of change.
Understand percentage change →