Deductions & credits

Thank you so much for your imformative reply. I'm still stuck. The screen that follows may be where I'm having a problem:

I have owned the house since 2010. So I counted the days I have used it as a second home (2,720 days) and I have calculated the number of days I lived there, in the past 5 years 1,038 days (which exceeds the 730 minimum). However, the software does not ask how many days I lived there with the house being primary. The software is calculating that $48,253 is subject to capital gains tax when my profit was only $70,214 which is under the $500,000 profit threshold for our joint return.

I hope I have provided adequate information. If not, let me know. 

Thank you for your help.