How much is a couplet of calligrapher Luo Xinghua worth?

Luo Xinghua, a native of Langzhong City, Sichuan Province, was the former deputy director of the Standing Committee of Zunyi Municipal People's Congress. Now he is honorary president of China Painting and Calligraphy Research Association in Zunyi, honorary president of China Old People Painting and Calligraphy Institute, honorary president of China Famous Painting and Calligraphy Research Institute, honorary president of China Famous Painting and Calligraphy Research Institute, academician of China Mayor Painting and Calligraphy Research Institute, international master of sinology literature and art, and honorary professor of China Art Research Institute. He was awarded the special prize for major international academic achievements, the lifetime achievement award for the 60th anniversary of the founding of the People's Republic of China, the honorary title of outstanding contemporary meritorious artist in China and top talent in China art world.

Calligraphy works are about 20,000-50,000 square meters, depending on the works.