How much is the calligrapher Song Qixiong's handwriting worth?

You can meet Mr. Fu Jianzeng, who is now the vice chairman of China Calligraphers Association. His calligraphy style is very distinctive. He is good at cursive script, especially left-handed calligraphy, and has made great achievements. The price is determined by quality, size, mounting and quantity. At present, Mr. Fu Jianzeng earns about 5,000 yuan per square foot, and works of art are hard to get.