Retirement tax questions

Hm. But now I did the calculations on this IRS page for "plan contributions" and I get a much lower number: $7761.51.  

 

https://www.irs.gov/retirement-plans/self-employed-individuals-calculating-your-own-retirement-plan-...

 

That's a big difference from $28K.  

 

I'm confused. 

Now I'm back to thinking TurboTax has a bug here.  First, it's not taking into account the W2 401(k) elective deferral I made. That should be easy to read. 

Plus, its Keogh/SEP worksheet may still not be calculating the right amount I can contributed to my individual 401(k) BEYOND the individual 401(k) elective deferral.