Calculating depreciation equivalent

I've been using Turbo Tax for about 10 years.  I sold my 2013 car in 2020 that was used mostly for business.  I'm doing my tax return and being asked about the gain/loss and AMT gain/loss.  Also prior depreciation equivalent and/or AMT prior depreciation equivalent.  I don't really understand but am also wondering since TurboTax has been transferring my info from year to year, would be nice if applied this.

Can I get advice on these 4 items?

Thanks

-Airon