The point about the professional/graduate degree for your new major and GPA is very well stated.

Another issue is that you will need to check the new major to see if there are certain General Education classes (classes taken in your first 2 years) that are specified for your new major. An example of this would be if you were transferring to Business — some colleges give the choice between Economics or American Gov’t — Business might stipulate Economics be taken. When you change your major you will need to go to the course catalog for your new major to make sure you have the correct GED courses required by that major. If not, then those will be additional courses you will have to complete prior to graduation.