This stacked bar chart visualizes the percentage of revenue across six product categories, with each bar segmented into five revenue ranges from "less than 100" to "above 5000." The data comes from a CSV file, and the visualization uses d3.stack() to compute the stacked segments, with a d3.scaleOrdinal providing color encoding for each revenue range. Hovering over any segment triggers a tooltip that displays the exact percentage for that category and revenue range. The chart employs d3.scaleLinear for the x-axis, d3.scaleBand for the y-axis categories, and SVG rect elements for rendering the bars.