ACT SAT Prep How to determine the price increase and decrease of a value

The video tutorial explains how to calculate the net earnings or loss from stock transactions. It begins with a stock price increase of 20%, followed by a decrease of 20%. The instructor demonstrates how to calculate these changes using percentages and decimals, starting with an initial stock value of $250. After the price increase, the stock value rises to $300, but after the decrease, it falls to $240, resulting in a net loss of $10. The tutorial emphasizes the importance of understanding percentage calculations in stock market transactions.

What is 20% of $250, and how does it affect the stock price?

Explain how to calculate a percentage increase and decrease using the example provided.