If you know how to bulk edit, hitting the PL's is simple.
- go to Active Listings
- leave as-is, or filter to restrict categories or even put in a keyword, if you want to restrict the results
- hit the box next to "Actions" to select all items (or select individually, if you only want to change some items)
- hit the "Edit" dropdown, and choose the "Edit all xxx listings" option
- once in the "Revise Listings" page, again, hit the box to select all listings (again, select individually if you don't want to affect all)
- hit the "Bulk Edit" dropdown, scroll down to "Promoted Listings"
- choose either "Update..." or "Stop"
- then, choose "Apply fixed suggested..." if you want to go with eBay's suggestion (which would give to you different rates based on ; choose "Apply single fixed..." if you want to set your own percentage
- if you chose "Apply single fixed," enter the percentage that you want
- hit "save"
- hit "submit"
Done!
