How much is Cui Zhiqiang's calligraphy worth, the price of his works and the auction price?

Not a famous artist, no reference to the auction price.

Please note: it can be auctioned, and signing an auction contract does not mean selling. Entrusted auction contract is different from the contract for the sale of goods: entrusted auction contract is helpful to auction goods, but it does not mean that the auction is successful; A contract for the sale of goods is a kind of sale.