https://pe.usps.com/cpim/ftp/manuals/dmm300/Notice123.pdf

The country is now divided into 9 zones. The package (as an oo and ooo padded envelope is treated as a package) went from California to Collector X in Georgia, the furthest (farthest? far-East-est?) way to go. $4.06 is the longest long-distance charge so that's what I had to pay. Not sure how I can calculate a shipping cost to post on eBay now - how do I know WHERE my high bidder will be? Yes, I can see that from Nevada to California would be the closest, near-West-est way to go so such parcels will cost less.