1. What is Variance %?

Variance percentage measures the relative change between two values, showing how much a new value differs from an old value as a percentage of the original value.

2. How Does the Calculator Work?

The calculator uses the variance percentage formula:

Where:

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

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

3. Importance of Variance Calculation

Details: Variance percentage is widely used in finance, statistics, business analysis, and performance measurement to track changes over time, compare results, and identify trends.

4. Using the Calculator

Tips: Enter both new and old values. The old value cannot be zero as division by zero is undefined. Results are shown as percentages with two decimal places.

5. Frequently Asked Questions (FAQ)

Q1: What does a positive variance percentage indicate?
A: A positive variance percentage indicates an increase from the old value to the new value.

Q2: What does a negative variance percentage indicate?
A: A negative variance percentage indicates a decrease from the old value to the new value.

Q3: Can the old value be zero?
A: No, the old value cannot be zero as it would result in division by zero, which is mathematically undefined.

Q4: How is variance percentage different from percentage change?
A: Variance percentage and percentage change are essentially the same calculation - both measure the relative difference between two values.

Q5: In what fields is variance percentage commonly used?
A: Variance percentage is commonly used in finance, economics, business analysis, scientific research, and quality control to measure performance changes.