The Savings Jar That Grew a Dollar
Keeping coins in a jar is safe, but the jar never gets any bigger on its own. Money kept in a savings account at a bank can. The bank pays you a small extra amount for letting it hold your money. That extra money is called interest.
Banks use a rate to work out interest. A rate is often written as a percent, which means "out of every 100." Pretend a bank pays 5 percent a year. That means for every 100 dollars you keep there, you earn 5 dollars each year.
Now suppose you put in 20 dollars. Twenty is one fifth of 100, so you earn one fifth of 5 dollars. That is 1 dollar. After one year, you have 21 dollars. You did nothing but wait.
A dollar may sound small. But the longer money stays in the bank, the more interest it can earn. Larger deposits earn more too. A person who saves 100 dollars would earn 5 dollars in the same year.
Interest rates change, and different banks offer different ones. A grown-up can help you compare them. Still, the lesson is clear. Saving is not only putting money away. With interest, your savings can slowly go to work for you.