Gross Margin Growth Difference is an indicator that measures a company's profitability relative to its sales growth. It reflects whether the company's profitability is increasing at the same time as its sales are growing, and the difference between the two. If the growth rate of gross profit is faster than the growth rate of sales revenue, it may indicate that the company has stronger cost control capabilities, higher pricing power, or optimized product structure. On the contrary, it may imply rising costs and declining product competitiveness. Investors usually use this factor to judge the operating efficiency and profit quality of a company, and as a reference indicator for future profit trends. The larger the value of this factor, the better, indicating that the company's profitability is increasing.