Gain/Loss basis

I have read the other posts about this but is still confused on what to enter. Total cost of my car was $33k in 2015. When I started using my car for delivery business in 2023 it was worth $8375. I traded it in for a newer vehicle in 2025, trade in cost was $1300. Do not have any allowable depreciation on previous tax returns so what will my basis for gain/loss be? What will my basis for AMT gain/loss be? I used my vehicle 52.02% for business.