Mr. Greg is planning to open a new shop whose floor space spans approximately 4000-5000 gross square

Question:

Mr. Greg is planning to open a new shop whose floor space spans approximately 4000-5000 gross square feet. The shop will also contain an office area measuring approximately 800 square feet. Develop a cost and revenue structure that will cover the design and construction of the shop, as well as an operating period of 20 years culminating in the sale of the shop at the end of the 20th year.