What is the price of calligraphy in Dong Shouping?

Formerly known as Dong Kui, he was born in Hongdong, Shanxi. Painting flowers and birds is the best. I remember that the auction price of his flower-and-bird paintings in Shanghai 20 10 was 50,000 yuan/square foot. The price of calligraphy is low. Last year, my friend bought more than 9,000 yuan/square foot. It won't go up much this year. Please refer to.