Around how many UCAS points I should have with a BSc in Business Administration and MSc in Marketing?

I did my bachelors degree in the US (I've got 2:1 equivalent in the UK) and now I am finishing my masters in UK (I'm expecting a merit), but it's very hard to caluculate my UCAS points...I would really appreciate your help because I'll use the info for job applications :) Thanks in advance!