If a book is sold in 60 yuan and 40 yuan, it will be 66% off, which is commonly known as 66% off.

Assign 40 yuan:

1, Dangdang: It is estimated that the discount on Dangdang's purchase of this book is 50%-60%, with a median of 55%, that is, Dangdang's gross profit is

60*(66%-55%)=6.6 yuan. Gross profit MINUS logistics, management, taxation and other expenses is pure profit. The estimated net profit is around 2 yuan, which basically belongs to capital preservation. This is why the minimum order amount for Dangdang delivery requires free shipping in 29 yuan.

2. Wholesalers: Books are generally purchased directly from publishers, and the cost of this part is 0.

3. Publishers, etc. : The income is 60*55%=33 yuan. Distribution of this part of income:

A. Author: Royalty 8%, that is, 60*8%=4.8 yuan.

B suppliers of paper and ink: 60*30%= 18 yuan.

C. Publisher: 60*(55%-8%-30%)= 10.2 yuan,

This part should be shared and purified by editors, directors, managers and logistics personnel.