Selling 20 roast ducks in Shenzhen earns 800-850 yuan. The purchase price is 4-5kg in 18-25 yuan, and the retail price of the crispy roast duck is about 52-70 yuan each. After deducting the consumption of condiments, the loss of water, electricity and coal and wages, the profit of each roast duck is 34-45 yuan left, and the profit of the master who usually cuts pieces can reach 40 yuan. If 20 roast ducks are sold every day, the daily net profit can be more than 800. After the roast duck comes out, the meal is very fast. You can cook roast duck rice, sell it whole, and make roast duck rolls. It is very flexible to sell with cakes.