Lao She's calligraphy auction price, how much is the square foot?

Fifty thousand yuan per square foot.

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.