it's cost-effective for meituan to cooperate with others. The opening of the cooperation between the US delegation and the restaurant will enjoy the benefits of free promotion and reduced commission. Restaurant cooperation combines the advantages of take-out and restaurant food to meet the diverse needs of customers and provide better consumption scenarios and experiences. At the same time, the commission was reduced to 16%, which increased the profit. Therefore, it is cost-effective for the US Mission to cooperate with the restaurant.