1. What is a Percentage Decrease Calculator?

Definition: This calculator determines the percentage decrease between an original value and a new value.

Purpose: It helps quantify reductions in values like prices, quantities, measurements, or performance metrics.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• Original — The initial value before decrease
• New — The value after decrease

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

3. Importance of Percentage Decrease Calculation

Details: This calculation is essential for analyzing changes in business metrics, financial performance, scientific measurements, and everyday comparisons.

4. Using the Calculator

Tips: Enter the original value and new value (both must be positive numbers, with original > 0).

5. Frequently Asked Questions (FAQ)

Q1: What does a negative percentage decrease mean?
A: A negative result indicates a percentage increase rather than decrease (when new value > original value).

Q2: Can I use this for percentage increase calculations?
A: Yes, when the new value is greater than the original, the result will show as a negative decrease (which is an increase).

Q3: What's the maximum percentage decrease possible?
A: The maximum is 100%, which occurs when the new value reaches zero.

Q4: How is this different from percentage difference?
A: Percentage decrease specifically measures reduction from original to new value, while percentage difference measures change regardless of direction.

Q5: Why is the original value in the denominator?
A: Using the original as the base provides consistent comparison relative to the starting point.