A scatter plot visualizes company financial performance from 2018 to 2030 using CSV data, encoding Revenue, Expenses, and Profit as colored circles whose size reflects employee count. D3 v7 API calls including `d3.csv`, `d3.scaleLinear`, and `d3.axisBottom` render the SVG chart, while mouseover events trigger a positioned tooltip showing metric details. A legend distinguishes the three financial metrics, and a secondary legend maps circle size to employee numbers.