IBT and SAT performance requirements
If you get 80 points in the IBT exam, you will have more choices, depending on the requirements of different schools. SAT is not necessary, but it is helpful to apply for a scholarship. But if your goal is those cattle schools, you'd better take the exam.
Transfer credit
You can transfer credits. You need your current school to issue transcripts in Chinese and English, and then stamp them and send them. Usually all credits can't be transferred, only those approved by the other party will be transferred, such as mathematics, corresponding professional courses and so on.
Change major
You can change your major, and you usually need to study for 4 years after changing your major.
Scholarship application
Can apply for a scholarship, the specific conditions need to see the school official website. Generally speaking, consider IBT, SAT scores, your previous school scores, personal statements, letters of recommendation, participation in activities and awards.
Study abroad expenses
If it is completely self-funded, the budget will range from 30,000 to 50,000 US dollars per year, which is different in different regions.
Personal experience sharing
I suggest you Baidu HI me. I finished my freshman year in China and then went abroad. I changed my major and got a scholarship.