How in the world to figure, I just watched a roll of silver quarters bring $400 in an online auction & it takes 2 people to get to that price.
Junk Silver has low buy back because most all the refiners are buying .999 only Silver from coin dealers to fabricate Comex good delivery bars ( presumably because the Comex has historic low inventories). They are in a panic to not go into default. Much written about that.
In addition, The refiners aren’t taking in .925, .770, .715, etc as it takes more time to refine it to .999. This will pass in time. I have seen Junk sell as high as 6 percent over spot ( 3-6 the historic norm) and during the Covid scare shortages even 12-20 percent over spot.
That is why coin dealers today are offering Junk Silver at below spot price, ( or not buying at all). I saw one in Florida selling Junk at 8 percent below spot- a true bargain.Silver is Silver, and the junk dimes, quarters and halves aren’t being counterfeited- yet.
* note, Junk Silver is the preppers number one choice for barter. A pre 65 dime today is worth 5.50 US paper dollars. A flea market food shack I went to last month was offering food for Junk Silver.... 2 Silver dimes for a breakfast Taco.....
.....and my local farmers market ( mostly Mexicans) gave me $100 in groceries for a Silver Mexican Libertab!