iPhone 12 Pro Max Apple.com Upgrade question

[TitleistGolfer]

I bought the 12 pro max last year and did monthly payments through Apple on my Apple Card. My dumb question is will trade value be roughly the same if I trade it into Apple and use that to pay off the balance I owe (686$) I probably should have just done the annual upgrade plan to begin with.

 

[now i see it]

You'll always make more money selling it yourself on Swappa etc than trading it in for a new model.
That iPhone will still be in high demand even when the iPhone 13 comes out - so it will be easy to sell.