It's about 15000 RMB. There are mainly the following ways to make money: the first way: express delivery 50 cents a piece, about 600 pieces a day, one month 18000 pieces, that is, 9000 RMB. The second type: express delivery. According to their family's data, the amount of mail sent is about 5% of the amount received, and about 30 express mails can be sent every day, with 900 pieces per month. The average monthly income in 5 yuan is about 4,500 yuan. The third type: many express delivery points don't sell goods, just put some drinks and cigarettes at home, and the monthly income is about 1000 yuan. If business is better in summer, they can earn more than two thousand yuan, mainly selling drinks and cold drinks well. The above three kinds of income are about 15000 a month. The first type: express collection. One dollar and fifty cents, 600 dollars a day and 18 thousand dollars a month, which is 9 thousand dollars. The second type: express delivery. According to their family data, the amount of mail sent is about 5% of the amount of mail received. They receive 600 express mails every day and can send about 30 express mails on their behalf. 900 yuan a month, they earn an average of 5 yuan a month. Then about 4500 a month. The third type: commodity sales. Many express outlets don't sell anything, so put some drinks and cigarettes in the house, and the monthly income is about 1000. If it is summer and business is better, they can earn more than two thousand yuan, mainly selling drinks and cold drinks well. The above three kinds of income are about 15000 a month.