Wallace Sichuan style crispy chicken is a product of Wallace fast food brand. Through market research and sales data analysis, it is found that the sales volume of this product is low. The low sales volume may be due to consumers' low preference for product taste, price or promotion. In order to reduce the inventory backlog and optimize the product structure, Wallace decided to take the products off the shelves. This can better meet the needs of consumers and improve the overall sales performance.