1. What is a Percentage Change Calculator?

Definition: This calculator determines the percentage increase or decrease between two values using the Marshu method.

Purpose: It helps analyze changes in values over time, such as price changes, growth rates, or performance metrics.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• New Value — The current or final measurement
• Original Value — The initial or previous measurement

Explanation: The difference between values is divided by the original value, then multiplied by 100 to convert to a percentage.

3. Importance of Percentage Change Calculation

Details: Percentage change provides a standardized way to compare changes across different scales and magnitudes.

4. Using the Calculator

Tips: Enter both values (new and original). The original value cannot be zero. Positive results indicate increase, negative indicate decrease.

5. Frequently Asked Questions (FAQ)

Q1: What does a negative percentage mean?
A: A negative percentage indicates a decrease from the original value to the new value.

Q2: Why can't the original value be zero?
A: Division by zero is mathematically undefined, making percentage change calculation impossible.

Q3: How is this different from percentage difference?
A: Percentage change compares two values over time, while percentage difference compares two simultaneous values.

Q4: What's the Marshu method?
A: This refers to the standard percentage change formula presented in a clear, user-friendly format.

Q5: How precise are the results?
A: Results are shown to 2 decimal places for most practical applications.