Business imo is a form of general knowledge. Although you may
take up business now, it may not be flexibly applicable elsewhere
compared to science.
Why don't you take up Science first then move on from there. Get a
diploma, then aim for a degree and then do your masters after the
honour years.
As for business, you can get the knowledge just by reading up or
from other people who will help you up with it.
All the best! 
