To change the commission on a land NFT game card, please follow the below instructions.
Go to the top right portion of the screen and click the fourth icon, Land Management:
A new window should appear, then click "Manage Land" button.
(Note: should you have multiple lands, proceed to the far left portion of the pop-up and then select the target land, then proceed on clicking the "Manage Land"
Now on the main screen, locate the Landowner Commission field and enter your desired value. Click Set. A WAX pop-up should appear for the transaction. Approve it and your commission has now been updated.