Rental Property/ Home Office Depreciation

I sold my property in 2019, a property that I had a home office in, as well as rented out a bedroom .  This activity was in 2016-2018 for the most part.

 

The TurboTax question I am stumped on is - " Since you used your home for business purposes or rented it out, you must reduce the home's cost basis by  the total of any depreciation deductions that you took over the years.

 

Depreciation Taken on this home ______

Depreciation Taken for AMT ________