Process to Remove Delete Permissions On SharePoint List

I got a requirement from my client asking me to remove delete permissions on SharePoint List except for SharePoint site Owners group. Thought for a while for the solution, went ahead and create a new SharePoint permission set without delete permission. That's it, task has became very easy. Now go in to the list settings and select list permissions. In the Actions menu select Manage Permissions. you will be prompted with the message that "You are about to create unique permissions for this List. changes made to parent site will no longer refer to this list.". Select Ok. Now select the appropriate SharePoint groups and remove the existing permissions and add the permissions which you have just created. your task is done.