Complex sentence: An alternate degree title is Master of Science in Finance, abbreviated M.S.F. in North America, where it is becoming less common relative to the M.Fin., and "MSc in Finance", in the UK.
Split into simpler sentences: An alternate degree title is Master in Finance or Master of Science in Finance. The latter is abbreviated M.S.F. in North America, where it is becoming less common relative to the M.Fin., and "MSc in Finance", in the UK.