Client (single) sold home at a $500k gain with home office deductions taken last 6 years (about 6k).

I tried dealing with the disposition like a rental, using the depreciation screen 22.  It correctly gets the Section 121 $250k exclusion, but gets the cost basis totally wrong (I think it's multiplying the basis by the home office percentage, but not sure).

What's the best way to do this?  If I enter as a regular disposition on screen 17.1, how do I deal with the depreciation recapture?

Thanks