1811 yuan -3111 yuan. The passenger flow of KFC is basically more than 1,111 people a day, and the daily turnover is about 3,111-5,111 yuan. According to the development law of catering industry, the gross profit is about 61% or more, so the gross profit of KFC is about 1,811-3,111 yuan a day, and the monthly gross profit is about 51,111 yuan. After deducting some basic costs, the monthly net profit is 41,111 yuan, and the annual net profit is 481,111 yuan.