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:

Explanation: The formula calculates what percentage the smaller value is reduced from the larger original value.

3. Importance of Percentage Decrease

Details: Percentage decrease is crucial in business for tracking sales declines, in finance for monitoring investment losses, and in science for measuring experimental reductions.

4. Using the Calculator

Tips: Enter the original (larger) value and the new (smaller) value. The larger value must be greater than the smaller value for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between percentage decrease and absolute decrease?
A: Absolute decrease is the simple difference (larger - smaller), while percentage decrease shows this change relative to the original value.

Q2: Can percentage decrease be more than 100%?
A: No, the maximum percentage decrease is 100%, which would mean the value has decreased to zero.

Q3: How is percentage decrease different from percentage change?
A: Percentage change can be positive (increase) or negative (decrease), while percentage decrease always shows a reduction.

Q4: What if my smaller value is bigger than my larger value?
A: The calculator will show an error - this would actually represent a percentage increase, not decrease.

Q5: How precise are the calculations?
A: Results are calculated to 2 decimal places for precision in most practical applications.