Some paintings and calligraphy by the same person are worth 10 yuan or 20 yuan per square foot, some are worth 50 yuan or 100 yuan per square foot, some are worth 1,000 yuan per square foot, some are worth 2,000 yuan per square foot, and some are worth 2,000 yuan per square foot. It may be 3,000 square feet,..., or even 10,000 or tens of thousands square feet...; and if you change to another auctioneer or intermediary, it will be a different situation... so it is It's hard to judge, and it's not an absolute price. Any personal evaluation is only a one-sided and personal opinion. Featured, famous, or particularly desirable by buyers, these may make the price higher.