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.
A child of 9+ years old, or even a large-sized younger child, may find the grip too small and need an adult racket. If the grip is correct for the child, you should be able to slide a finger up the middle of his finger tips. Racquet sizes range from 21 inches for a 3 or 4 years old to 26 inches for a 10 year old.Once a child hits about 5 feet tall they should move on to the 27 inch adult racket. Make sure the racket isnât too heavy, or else your child wonât want to hold it or swing it around for long. A light weight racket is best.f the grip is correct for the child, you should be able to slide a finger up the middle of his finger tips. Racquet sizes range from 21 inches for a 3 or 4 years old to 26 inches for a 10 year old. Once a child hits about 5 feet tall they should move on to the 27 inch adult racket.