How much is the collection of Xia Wenzhou's paintings and calligraphy now?

Xia Wenzhou, director of China Art Appraisal Center, vice president of China Chao Culture and Art Research Institute, consultant of painting and calligraphy institute, and member of China Calligraphers Association. In 2008, he was appointed Deputy Secretary-General of China Artists and Calligraphers Association. Calligraphy teenagers learn from famous artists Liu Qian and Shu Tong, and Chinese painting student Xu Zhan. Now, the price of their works is not correctly priced, at least not less than 5000 yuan per square foot. The above prices are for reference!