Home Back

Calculate Percentage Decrease Calculator

Percentage Decrease Formula:

\[ \text{Decrease} = \left( \frac{\text{Original} - \text{New}}{\text{Original}} \right) \times 100 \]

Unit Converter ▲

Unit Converter ▼

From: To:

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, or measurements as a percentage change.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ \text{Decrease} = \left( \frac{\text{Original} - \text{New}}{\text{Original}} \right) \times 100 \]

Where:

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: Percentage decrease helps analyze changes in financial metrics, performance indicators, measurements, and other quantitative data.

4. Using the Calculator

Tips: Enter the original value and new value (must be less than original). Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

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

Q2: Can I use this for financial calculations?
A: Yes, this is commonly used for calculating price reductions, budget cuts, or profit decreases.

Q3: How is this different from percentage difference?
A: Percentage decrease specifically measures reduction from original to new value, while difference measures change in either direction.

Q4: What if my new value is zero?
A: This would represent a 100% decrease (complete reduction to zero).

Q5: Can I calculate percentage increase with this formula?
A: No, for increases you would use (New - Original)/Original × 100.

Percentage Decrease Calculator© - All Rights Reserved 2025