To calculate the price change for all companies listed on NASDAQ, you would need to iterate through each company's stock data and calculate the price change for each one. Here's how you can do it:
- Retrieve the Stock Data: Obtain the stock price data for all companies listed on NASDAQ. This data should include the opening price, closing price, and any other relevant information needed for the calculation.
- Calculate Price Change: For each company, subtract the opening price from the closing price to determine the price change for the day.
- Compute Percentage Change: Divide the price change by the opening price, and then multiply the result by 100 to obtain the percentage change.
- Record the Results: Record the price change and percentage change for each company in a database or spreadsheet.
By following these steps, you can calculate the price change and percentage change for every company listed on NASDAQ. This information can be used to analyze market trends, evaluate individual stock performance, and make informed investment decisions.