How much is the word Changnianli worth?

I don't know much about Mr. Chang Suili's calligraphy, but the price of calligraphy is different. Some time ago, I asked Mr. Fu Jianzeng for an inscription because of my work, and the price was about 5,000 square meters. This gentleman's calligraphy style is very distinctive, and he is good at cursive writing, especially left-handed calligraphy. He is currently the vice chairman of China Artists Association. You can contact him for other details.