This share price percentage increase and decrease calculator will tell you exactly how much a share has gone up or down in just a few clicks. You can use it calculate your percentage profit or loss when buying shares.
How to Use Our Share Price Percentage Increase and Decrease Calculator
Our share price percentage increase and decrease calculator helps you quickly work out how much a share has gone up or down in value. It’s designed for UK investors who want to measure performance easily, without doing the maths themselves.
To use the calculator:
- Enter the original share price – this is the price you bought the share at, or the starting price you want to compare from.
- Enter the new share price – this is the latest market price, or the price you want to compare it to.
- Click calculate – the tool will automatically show you the percentage increase or decrease.
The calculator uses a simple formula:
Percentage change = ((New Price – Old Price) / Old Price) × 100
If the result is positive, the share price has increased. If it’s negative, the share price has decreased.
Here is an example of how the percentage increase calculator works:
- If a company’s share price was £2.00 and is now £2.40, the increase is 20%.
- If it fell from £2.40 to £2.00, the decrease is –16.7%.
You can use this calculator to track daily changes, compare shares in your portfolio, or see how much your investment has grown (or fallen) over time.
Remember, this calculation only measures price movement. To see your total return, you should also include dividends and any dealing or platform costs.