A stacked bar chart displays the percentage of total fee payments made by students across five installments, with each bar representing a student and colored segments showing the proportion paid at each term. Hovering over a segment highlights it and displays a tooltip with the exact percentage for that term. The visualization uses d3.v7 with SVG rendering, employing d3.stack() to process the CSV data and d3.scaleBand and d3.scaleLinear for axes, while d3.scaleOrdinal assigns categorical colors to the payment terms.