Separate the trade from the new lease. Edmunds is NOT authoritative on what your used car is worth. Get quotes from the car buying services
Edmunds IS authoritative on the captive lease programs, so go ask them what the residual/MF/incentives are for this model, for those two different terms you were quoted, in your zip. Plug everything into the lease calculator to see where your payments should be. Follow the instructions that were shared by @volvo1 above.