Your interest rate (6%) is the annual rate on the loan. To calculate amortization, you will convert the annual interest rate into a monthly rate. The term of the loan is 360 months (30 years). Since amortization is a monthly calculation in this example, the term is stated in months, not years. Your monthly payment is $599.95. The dollar amount of the payment stays constant.
Many teenagers can eat 1 to 3 servings per week without gaining too much weight. Remember too much sweets and desserts will also effect the amount of skin problems your teenager has, like pimples. One serving is a medium portion, such as 1/8 of a pie, 1/2 cup ice cream, a 3-inch pastry,1/2 cup pudding, or 2 small cookies.
According to the USDA, moderately active boys age 9 to 13 need about 1,800 to 2,200 calories per day and moderately active teenage boys ages 14 to 18 require about 2,400 to 2,800 calories each day. Active teenage boys engage in physical activity equivalent to walking more than 3 miles per day.