How much is a square foot of calligraphy in Wang Wenzhi, market conditions, auction transaction price

Non-famous works, no auction price reference.

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.