18-200,000 yuan. According to the relevant public information, the initial cost of equipment and materials is about 1-20,000 yuan, the working capital is 20,000 yuan, the rent is 5,000 yuan/month, and the annual payment is 50,000-80,000 yuan. The renovation fee is about 800 yuan/flat, * * * yuan 1 50,000 yuan, and the labor is temporarily counted as 2 people, with an average of 3,000 yuan/month.