No need. According to the inquiry of official website of Tan Kah Kee College of Xiamen University, it shows that it doesn't cost anything to change majors from Tan Kah Kee College of Xiamen University. Established in 2003, Tan Kah Kee College of Xiamen University is an independent college approved by the Ministry of Education and jointly organized by Xiamen University, a key university directly under the Ministry of Education, and Xiamen Tan Kah Kee Education Development Co., Ltd., which operates with a new mechanism and mode.