1. What is Percentage Decrease?

Percentage decrease measures the reduction in a value relative to its original amount, expressed as a percentage. It's commonly used to track declines in prices, quantities, or performance metrics.

2. How Does the Calculator Work?

The calculator uses the percentage decrease formula:

Where:

• Old Value — The original or starting value
• New Value — The current or reduced value

Explanation: The formula calculates what percentage of the original value has been lost in the decrease.

3. Importance of Percentage Decrease

Details: Percentage decrease is crucial for analyzing trends, comparing reductions across different scales, and making informed decisions in finance, business, and science.

4. Using the Calculator

Tips: Enter both old and new values as positive numbers. The old value must be greater than the new value for a decrease calculation.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between percentage decrease and absolute decrease?
A: Absolute decrease shows the numerical difference, while percentage decrease shows the relative change compared to the original value.

Q2: Can percentage decrease be more than 100%?
A: No, a 100% decrease would mean the value has gone to zero. Values over 100% would imply negative values, which this calculator doesn't handle.

Q3: How is percentage decrease different from percentage change?
A: Percentage change can be positive (increase) or negative (decrease), while percentage decrease specifically measures reductions.

Q4: What if my new value is higher than the old value?
A: The calculator will not display a result as this would represent an increase rather than a decrease.

Q5: Why use percentages instead of absolute numbers?
A: Percentages allow for standardized comparisons between values of different magnitudes or scales.