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.
Grip Sizes for Kids. Grip size refers to the circumference or the distance of the edge of a racquet handle, and is measured in inches. For kids, selecting the appropriate grip size is made a bit easier than it is for adults mainly because manufacturers produce a 4 inch grip size for almost all kids tennis racquets.acquet Length for Kids. Without a doubt the most important measurements for selecting a kids tennis racquets is the length of the racquet and the height of your child. The length of the tennis racquet is the primary adjustment manufactures have made to make them more kid friendly.