Mathematical modeling the discount behavior of goods is related to sales volume, and mathematical modeling can be used to analyze the relationship between discount behavior and sales volume. By collecting and analyzing sales data, a mathematical model can be established to predict the influence of different discounts on sales volume and provide reference for future sales strategies. Discounts will attract more consumers to buy goods. Increasing discounts can promote sales growth. Excessive discount will lead consumers to doubt the quality of goods, thus reducing their willingness to buy.