I’m only “filling in” for Unique App as I tried to mention this also in another post on this thread.
On an item that you have listed for sale, you would need to go to “Manage Inventory” on your Seller page and click on that tab and then click on “Active Listings”, then you would find the item that you listed and then click on “Actions” and then click on “Edit Details”.
There would be a light blue shaded background “Amazon Product Summary” rectangular box at the top of the page and at the right side of that box, at the bottom it shows “Amazon Sales Rank”. Above that other offers in other conditions are listed.
I will try to see if I can copy an example here:
Competing Marketplace Offers
22 New from $9.99 + $2.98 shipping
1 Collectible from $29.00 + $2.98 shipping
64 All from $2.50 + $2.98 shipping
41 Used from $2.50 + $2.98 shipping
Amazon Sales Rank
Well, close enough, but not what it really looks like. You will have to test it out yourself with one of your listings.