What method should be used to calculate the NC portion of an S-corp K1?

The NC D400 PN form is for part year NC residents to declare what portion of their federal income was earned in NC.

 

I own the S-corp and made almost all of the revenue while not living in NC.   If I divide NC Revenue / Gross Revenue I get 4%.

 

If I go by months, I lived in NC 5/12 months, so I get an apportionment of 42%.  10x as much!

 

If I run a Profit and Loss statement for my S-corp for the time I lived in NC, it actually shows up as a loss!

So which is the proper way to determine apportionment?  Turbotax offers no guidance.