Which chart type can be used to display summary values from two different levels of grouping in a report?

A stacked bar chart is designed to display summary values that come from two different levels of grouping within a report. This visualization allows for a clear comparison of individual segments (or groups) while also showing the total. Each bar represents a main category, and the segments within the bar represent the subcategories that contribute to the total. This makes it particularly effective for displaying hierarchical data where you want to see both the overall values and the breakdown of those values by subgroup.

In contrast, a funnel chart typically visualizes a process with stages, such as sales conversion rates, and is not suited for comparing multiple grouped totals. A donut chart offers a circular view of data segments but does not facilitate comparison across multiple levels of grouping effectively. A grouped line chart focuses on trends over time across different categories but does not summarize values from different levels of grouping, as it emphasizes changes in values rather than static totals.

Therefore, when the objective is to illustrate summary values from two distinct levels of grouping, a stacked bar chart is the optimal choice, allowing for both comparison and total aggregation within the visual representation.