I ended up receiving $14.92 from the buyer. $3.82 was netted off for Ebay shipping and an additional $1.95 was taken off for Ebay. Later another $1.26 was taken from Ebay, so my net for the transaction was $7.89.
$14.92 less $3.82 made sense and it took me to $11.10, approximately the purchase price.
$1.95 is about 18%
$1.26 is about 11%
$3.21 is about 29%
The claimed fee for books is 14.55% of the value of the sale plus $0.30. This would have worked out to $1.90.
Not the end of the world, but something was certainly not adding up.