Is Sun Jianjun's calligraphy 200 yuan valuable?

If it is genuine, its value is far beyond 200 yuan. Sun Jianjun is a member of China Calligraphers' Association, and his calligraphy works have been appraised as 5000-6000 yuan/square foot by China Culture and Art Appraisal Market. His works have been published in large authoritative publications such as China Calligraphy and Century Man, and have been collected by all-China Federation of Trade Unions, China History Museum, Rong Baozhai, Taiwan Province Province, South Korea, Singapore and many other friends at home and abroad. For example, the quality of works, market demand, economic environment and so on. If your calligraphy is written by Sun Jianjun himself and is well preserved, its value may be higher.