Self employed homeowner basement remodel deduction amount?

We recently remodeled our basement. For sake of numbers lets say the basement was $50,000 and the total square footage is 1,000sq ft.  with 700sq ft of that space is for business use. 

The help files within TT say to add the remodel as a separate asset which I did.  When answering "Have you used this item 100% for this business since you acquired it?" I answered no since there is 300sq ft that is not business related.  It applied the same business use percentage as used previously. 

On the asset summary screen the total depreciation amount is $133 which seems rather low. What is the schedule of the depreciation for the asset? Can I calculate roughly what the deduction amount would be in the foreseeable future? 

Thanks