Received from California Source, entry question

I don't think I really want to know the answer to this, but maybe some good will come of it... 
Having sold a jointly owned home in CA after death of one non-spouse JT, I entered data and TT determined Total Gain, no problem.
In the below graphic, it shows Total Gain figured from the previous entries and also has place to enter 'Earned/Rev'd from CA Source as if Nonresident for Full Year'. 

There is no explanation as to what exactly, this entry is supposed to be! Am I to indicate here, the Gain from the sale of the house I/we received or is this entry for something else? 

If I leave it blank, we get ALL the pre-paid CA Franchise Tax back (a percentage paid incidentally, on the full sales price, NOT just on the Gain by surviving JT). If I enter the total gain here, we pay virtually the full amount... which would be very sad. 

 

Also, should we not be paying taxes on only the Gain (net sale -  cost basis adj) vs the Full Sales Price or the Net of Sale after deducting realtor Fees, etc?

 

CA gains for Turbo Tax.JPG

Thanks!