1. What is Percentage Increase?

Percentage increase measures how much a stock's price has grown relative to its original price. It's a fundamental metric in financial analysis to evaluate investment performance.

2. How Does the Calculator Work?

The calculator uses the percentage increase formula:

Where:

• New Price — Current stock price
• Old Price — Original purchase price

Explanation: The formula calculates the relative change as a percentage of the original value.

3. Importance in Stock Analysis

Details: Percentage increase helps investors compare performance across different stocks regardless of their absolute price differences, and assess whether gains outpace market benchmarks.

4. Using the Calculator

Tips: Enter both prices in dollars (without currency symbols). The old price must be greater than zero for calculation.

5. Frequently Asked Questions (FAQ)

Q1: What's considered a good percentage increase?
A: Varies by market conditions, but generally anything above the market average (e.g., S&P 500 annual return of ~7-10%) is good.

Q2: How does this differ from percentage points?
A: Percentage increase is relative to the original value, while percentage points measure absolute difference between percentages.

Q3: Should I use closing prices or intraday prices?
A: For consistent comparisons, use closing prices from the same exchange.

Q4: What if my stock split?
A: Adjust old prices for splits to get accurate percentage calculations.

Q5: Can this be negative?
A: Yes, if new price is lower than old price, it indicates a percentage decrease.