Percentage Change Formula:
From: | To: |
Definition: This calculator measures the percentage difference between an original value and a new value.
Purpose: It helps analyze growth, decline, or changes in various metrics like prices, quantities, or measurements.
The calculator uses the formula:
Where:
Explanation: The formula calculates the relative difference between two values as a percentage of the original value.
Details: Percentage change is crucial in finance, economics, business analysis, and scientific research to understand trends and performance.
Tips: Enter the original value and new value. The calculator will show the percentage increase (positive) or decrease (negative).
Q1: What does a negative percentage change mean?
A: A negative result indicates a decrease from the original value to the new value.
Q2: What's the difference between percentage change and percentage point?
A: Percentage change measures relative difference, while percentage points measure absolute difference between percentages.
Q3: Why do we divide by the original value?
A: Dividing by the original value standardizes the change relative to the starting point.
Q4: Can I calculate percentage change when original value is zero?
A: No, division by zero is undefined. The original value must be non-zero.
Q5: How is this different from percentage difference?
A: Percentage change compares to the original value, while percentage difference compares to the average of two values.