How hard is business studies GCSEWatch
-413001 (Smaller businesses)
-413002 (Growing a business)
-413003 Non-Exam Assessment (Coursework)
The 413001 is fairly easy. Like cj_sS said, it's mostly common sense (not entirely, only the first few units). However, Unit 2 (large businesses) is where it gets (a bit more) difficult. The only other section which I would say is really difficult is the People in Business section under Unit 1 (You have to be aware of a lot of legislation, e.g. Equality Act 2010, Consumer Rights Act 2015, Consumer Protection from Unfair Trading Regulations 2008, Health and Safety at Work Act 1999, etc.).
Now, the theory part is easy, but the most difficult thing in Business Studies is the actual exam. It can be really difficult to please the examiners, especially on 9 markers. My best advice is to keep applying to the case study (try and mention the name of the business), and keep asking yourself "So What?" until you get to something like more profit/saves time/increases market share/etc. Also, you should think about long/short-term consequences of your recommendation. (Keep in mind that this advice is for the old specification, it might be different for you).
Also, make sure to use a lot of subject terminology. (E.g. horizontal integration, revenue synergy, markup, diseconomies of scale, etc.)
Also, don't stress too much about it. I think for your year, the grade boundaries are going to be quite low, because you're the first year on the new specification (9-1).