Basically I think ACCT1501, ECON1101, MGMT1001 are the compulsory core courses that you have to do for Commerce. Whereas others would choose a statistics course, those intending on majoring in Actuarial Studies should be doing MATH1151. I'm not too sure about the finance bit.
You should contact ASB and check with them and also see if there's a Recommended Study Plan =)