How much is Zheng Hongxian's calligraphy worth?

the market decides whether the price is high or low, some buy high-end products and some buy low-end products. In addition, the prices of the same and different calligraphy and paintings are different in different people's eyes, but no matter who's calligraphy and paintings are good or bad, there are valuable and worthless, expensive and relatively cheap, so we can't generally talk about square feet, we can only say how much a piece is. Runge has no definite aim, but is just a reference, which mainly depends on his own judgment and understanding of his paintings and calligraphy, as well as the speculation in the market at that time. The price of a calligraphy and painting will be different in different places, different times and different auctioneers. For example, some paintings and calligraphy of the same person are worth 1 yuan/square foot, some are 2, yuan square foot, some may be 3, square feet, even 1, or tens of thousands of square feet; Moreover, it is a different situation to change to another auctioneer or intermediary, so it is difficult to judge, and it is not an absolute price. Any individual's evaluation is only one-sided and personal. Characteristic, celebrity, and favorite buyers want it, which may make the price higher. However, if the price of painting and calligraphy is high only because someone has a job now, or simply because of hype; Then when he retires, or no one speculates, the price will soon come down, even worthless. This is true of any other work of art. As long as it's okay, it's collectible. What's special here is that Runge is an unreliable reference, mainly depending on the market and my own understanding of the works, as I said above. Sorry, you still have to take your own ideas. What others say can only be used as reference. My own opinion, please forgive me for being wrong.