Measure the percentage increase or decrease between two values.
If a price rises from ₦8,000 to ₦10,000, the change is ₦2,000. Dividing that change by the original ₦8,000 gives a 25% increase. A decrease uses the same method but produces a negative result.
Percentage change depends on the starting value. It is not the same as the difference in percentage points between two rates.
The result is based on the original value as the reference. A zero original value cannot be used as the denominator for a conventional percentage-change calculation.
What is the reference value?
The original value is the reference point in the standard percentage-change formula.
Check the inputs and assumptions before relying on the result. FreeTools Hub is designed for general calculations and education; it does not replace professional financial, tax, legal or medical advice.