The article is about the importance of the annual percentage yield (APY) in determining the growth of money in a savings account. It explains that an APY of 4% is considered good compared to the national average of 0.47%. It also provides information on how to calculate APY and discusses other factors to consider when choosing a savings account, such as account fees, accessibility of funds, minimum balance requirements, compounding frequency, and the stability of the APY. The article concludes by emphasizing the need to consider these factors and to make an informed decision when opening a bank account. It also includes a FAQ section with answers to common questions about APY.