Step 2. Divide the annual interest rate expressed as a percentage by 12 to calculate the monthly interest rate expressed as a percentage. For example, if you have an annual interest rate of 7.8 percent, divide 7.8 by 12 to find the monthly interest rate is .65 percent.Related Reading: Interest Rate vs. APR Rate.anks accounts and loans often state the annual interest rate, but compound interest on a monthly basis, meaning that you need to know the monthly rate to calculate how much interest you will earn have to pay.
Major brand tennis racket manufacturers provide sizing guidelines to help you select the correct racket. If you child is 5 years old or younger and is 44 inches or shorter, a 19- or 21-inch racket is a good fit. If your child is age 6 to 8 and measures 45 to 49 inches, select a 23-inch racket.
Basketballs come in several sizes. Using the correct size can help prevent injury. Size 3: circumference 22 to 22.5 inches, weight 10-11 ounces, recommended for small children. Size 5: circumference 27.25 to 27.75 inches, weight 16.6-18 ounces recommended for boys and girls under 12 years old (junior league).