Currently I’m under leasing agreement, can I use bank car loan to settle it from current leasing company? Can the bank settle full amount or I have to pay 30%(or 40%?) and bank will only pay the rest of the amount?

Currently I’m under leasing agreement, can I use bank car loan to settle it from current leasing company? Can the bank settle full amount or I have to pay 30%(or 40%?) and bank will only pay the rest of the amount?