How much is Zhu Gang's calligraphy? 1 foot?

I don't know much about Mr. Zhu Gang's calligraphy, but the price of this calligraphy is different. Some time ago, due to work needs, I asked Mr. Fu Jianzeng for an inscription. The price is around 5000 square feet. 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.