As I asked before, are you asking about MAGI for purposes of the Net Investment Income Tax on Form 8960, or are you asking about some other version of MAGI for another purpose?

"MAGI" does not have a universal definition.  There are about a dozen things that use "MAGI", and many of them are calculated differently from other versions. 

So are you specifically wanting to know how the calculation of MAGI is for 8960?  Or are you wanting some other version of MAGI?