How can I predict and profit from a stock's decline in value?

One way to predict and profit from a stock's decline in value is by short selling. This involves borrowing shares of a stock from a broker and selling them at the current price. If the stock's value decreases as you predicted, you can buy back the shares at a lower price and return them to the broker, pocketing the difference as profit. However, short selling carries risks and may result in losses if the stock's value increases instead.