1. What is Percentage Improvement?

Percentage improvement measures how much a value has increased relative to its original value, expressed as a percentage. It's commonly used to compare performance improvements, growth rates, or changes in metrics over time.

2. How Does the Calculator Work?

The calculator uses the percentage improvement formula:

Where:

• \( New \) — The new or current value
• \( Old \) — The original or previous value

Explanation: The formula calculates the relative difference between the new and old values as a percentage of the old value.

3. Importance of Percentage Improvement

Details: Percentage improvement is crucial for evaluating performance changes, setting benchmarks, measuring growth, and comparing results across different scales or units.

4. Using the Calculator

Tips: Enter both new and old values (must be non-zero). Positive results indicate improvement, negative results indicate decline.

5. Frequently Asked Questions (FAQ)

Q1: What does a negative percentage improvement mean?
A: A negative value indicates a decline or worsening from the old value to the new value.

Q2: How is this different from percentage difference?
A: Percentage improvement is directional (new vs old), while percentage difference is symmetrical between two values.

Q3: What if my old value is zero?
A: The calculation is undefined when old value is zero, as division by zero is impossible.

Q4: Can I use this for percentage decrease?
A: Yes, the same formula works - a decrease will show as a negative percentage.

Q5: How should I interpret a 100% improvement?
A: 100% means the new value is double the old value (100% increase).