Dollar General Corp. (NYSE:DG)

The common-size income statement reveals a period of profitability expansion peaking in 2021, followed by a progressive contraction in margins through 2024. While the company maintained relatively stable cost structures for several years, a notable decline in net income margin is evident in the most recent fiscal year.

Gross Profit Margin

Gross profit margins exhibited a slight upward trend from 30.45% in 2019 to a peak of 31.76% in 2021. This improvement was driven by a reduction in the cost of goods sold, which reached its lowest point of 68.24% of net sales in 2021. However, this trend reversed over the subsequent three years, with gross profit margins declining to 30.29% by February 2024, reflecting a return to higher relative costs of goods sold.

Operating Expenses and Profitability

Selling, general and administrative (SG&A) expenses remained relatively consistent between 21.23% and 22.44% from 2019 to 2023. A significant increase occurred in 2024, where SG&A expenses rose to 23.97% of net sales. This spike in operating expenses, combined with narrowing gross margins, led to a substantial compression of the operating profit margin, which fell from a high of 10.53% in 2021 to 6.32% in 2024.

Financial Costs and Net Income

Interest expenses as a percentage of net sales have shown a steady increase, rising from 0.39% in 2019 to 0.84% in 2024, indicating a higher relative debt service burden. Consequently, net income margins followed the trajectory of operating profits, peaking at 7.87% in 2021 before declining to 4.29% in 2024. This represents a significant reduction in bottom-line efficiency over the final three years of the analyzed period.