Sole proprietor closed her business at the end of 2018.  She had a new vehicle in 2017 that took the standard mileage rate rather than set up as an asset to be depreciated.  The vehicle was converted to personal use at the end of 2018.  I read that I need to show the disposition date and include the amount of depreciation that's included in the standard mileage rate (25 cents per mile for 2017 & 2018) and show it on Ln 56 which I did but I'm getting an error message that the amount can't be more than the vehicle's basis.  So I input vehicle's cost on Ln 34 and got an error message.  Then I tried $0 and also the amount of the "allowable" depreciation and still got an error message.  I'm at a loss on how to include the "allowable" depreciation that was included in the standard mileage rate that has been taken.  Help!