How much is the handwriting of calligrapher Yang Yumin?

The prices of the same and different calligraphy and paintings are different in different people's eyes, but no matter whose calligraphy and paintings are good or bad, they are both valuable and worthless, expensive and relatively cheap, so we can't talk about them in terms of 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. So it is difficult to judge, and it is not an absolute price; Besides, any personal evaluation is only one-sided and personal. Features, celebrities, and people who like them in particular may make the price higher. As long as it is ok, it is collectible and will increase in value. My own opinion, please forgive me for being wrong!