Major Changing

Hey guys I applied to Binghamton like 20 days ago and it’s my top choice but I feel like y stats are mid (90% gpa EOP) when I applied I choose business administration as my major because I thought I could double major in accounting but accounting is my top choice and now I really want to change it to Accounting.

My main question is how would it affect my application which is already in Under Review Status

Also I know SOM is very competitive do anyone know which is more competitive between Accounting and Business Administration