What is the approximate price of Zhang Jianzhong's calligraphy and painting?

The price of 1000 yuan was estimated several years ago. It seems that it was still 3,000 yuan in 2009, and 1 1 was 30,000 yuan. The price of his paintings abroad is higher than that at home! Even if the imaginary part is removed, it will not be less than 5000 at least. Unless the fakes on the market are cheap, even calligraphy costs more than 2000.