1. What is Price Percentage Change?

The price percentage change measures how much a price has increased or decreased relative to its original value. It's a fundamental calculation used in finance, economics, and business to analyze price movements.

2. How Does the Calculator Work?

The calculator uses the percentage change formula:

Where:

• New Price — The current or final price
• Old Price — The original or initial price

Explanation: The formula calculates the difference between new and old price as a percentage of the old price. A positive result indicates an increase, while a negative result indicates a decrease.

3. Importance of Price Change Calculation

Details: Calculating price changes helps in financial analysis, investment decisions, inflation measurement, sales performance evaluation, and pricing strategy development.

4. Using the Calculator

Tips: Enter both old and new prices in the same currency. The old price must be greater than zero. The calculator will show the percentage change and indicate whether it's an increase or decrease.

5. Frequently Asked Questions (FAQ)

Q1: What does a negative percentage mean?
A: A negative percentage indicates a price decrease from the old price to the new price.

Q2: How do I interpret a 50% increase?
A: A 50% increase means the new price is 150% of the old price (old price + 50% of old price).

Q3: What if the old price is zero?
A: The calculation is undefined when old price is zero, as division by zero is not possible.

Q4: Can I use this for percentage decrease calculations?
A: Yes, the same formula works for both increases and decreases. The calculator will show the direction of change.

Q5: How is this different from percentage points?
A: Percentage change measures relative change from an original value, while percentage points measure absolute difference between two percentages.