A level choice help!Watch
Next is deciding what skills you would need to run it efficiently. I would suggest taking the big 3 Business Studies, Accounting and Economics along with Mathematics. This is only if you believe you can fight for your A levels.
Otherwise, you can choose Applied ICT along with two commerce subjects and round it up with Maths. This gives you 4 but really feels like 3.5 subjects as ICT is very passive and easy to maintain.
Hope this helps.