How much is the price of stone Wang Qingxin peony Chinese painting?

Wang Qingxin, a male, was born in January 1945 in Liaoning, Manchu, with a college education. He was taught as a child and studied calligraphy and painting. He successively studied under Shen Yanyi, Lu Xun, Fang Jizhong and He Haixia. Famous at home and abroad

The price of Chinese painting peony is about 5,-8, yuan per square foot, which will be higher if you go abroad

Hope to adopt it. Thank you.