There are these algorithms. Royalty r = book pricing P× circulation Q× edition tax rate R. Royalty r = book wholesale price Pw× circulation q /× edition tax rate R. Royalty r = book pricing P× sales Qs× edition tax rate R. Royalty r = book pricing P× print run q. X edition tax rate R. Royalty r = publishing house sales income I× edition tax rate R. Suppose a publishing house publishes a book at the price of 20 yuan. Based on this, we can calculate the royalty difference based on book pricing and book wholesale price respectively. Suppose the publisher and the author agree that the tax rate is 8%. Then the commission r = p× qi× r = 20× (10000-200 )× 8% =15680. Royalty r = pw× qi× r = 20× 0.65× (10000-200 )× 8% =10192.