How much is the calligrapher Ma Zhixin's work flat?

I don't know the specific price Calligrapher: Ma Zhixin casts a sword, and his name is Yangxin Zhai Zhu. China is a member of Hubei Wuhan Senior Calligraphy and Painting Research Association, vice president of Hubei Shouyi Calligraphy and Painting Research Association, and a member of Wuhan Calligraphy Association. Calligraphy works have participated in many national, provincial and municipal painting and calligraphy exhibitions and won excellent prizes.