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Step 1
Find a CD interest calculator, such as Bankrate's certificate of deposit calculator (see "Resources below). There are many others available on the Internet for people who want to know how much money they can make based on how much money they invest.
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Step 2
Enter the amount of your initial investment. You must tell the calculator how much money you plan to put in the certificate of deposit to begin with in order to calculate how much money you will make.
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Step 3
Decide how long the CD will remain an investment. This will help determine the amount of return you will get on your investment.
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Step 4
Input the annual percentage yield. This percentage can be obtained from your bank, credit union or where ever you plan to invest or have invested your money in a CD.
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Step 5
Click on the calculate button and see what the interest would be on the bank CD you have or want.













