Hello @Sunset2,
Your payout setting can be found by clicking on your profile photo and then on "Account settings" and then on "Payout Preferences".
To change the details you'll have to add a new payout method. When that is accepted and its status on that page is "Ready", you can make it the default payout method and delete the other one. The "make default" option is in the "Options" drop down box for the account.
The new payout method will go through the same set up process as the old one i.e. Airbnb will try to deposit 1 cent. If that's successful they will set the account status to "Ready" a few days later. It can then be used to receive payouts.
Steve.