Data infographic waterfall chart with variance outlier

Data visualization infographic titled "Waterfall Chart" using COMPARISON COLUMNS as the dominant visual element to explain a waterfall-style variance story with one clear surprise outlier. Create a large central stepped column sequence showing starting value, positive contributions, negative contributions, and final value, with sharp axis labels and tick marks in English. Use a clean left-to-right layout with these exact labels rendered on the chart: "Starting value", "Price increase", "Volume decline", "Cost savings", "Unexpected charge", "Tax effect", "Final value". Use realistic illustrative values exactly as follows: Starting value 100, Price increase +18, Volume decline -9, Cost savings +6, Unexpected charge -24, Tax effect -3, Final value 88. Show a full honest vertical scale from 0 to 120 with visible tick marks at 0, 20, 40, 60, 80, 100, 120, no axis truncation, and a y-axis label reading "Value (illustrative units)". Visually emphasize the outlier "Unexpected charge" as the largest negative step with stronger dark-ink contrast and subtle annotation treatment while keeping the monochrome ink palette.

Add 4 key insight callouts around the chart, each with a small simple icon, a headline number, and a short interpretation in English. Use these exact callout texts: 1) headline "-24" with interpretation "Largest movement: the unexpected charge erased most gains" and a warning icon. 2) headline "+18" with interpretation "Price increase was the strongest positive driver" and an upward arrow icon. 3) headline "88" with interpretation "Final value ended 12 below the starting point" and a summary document icon. 4) headline "33%" with interpretation "The outlier was about one-third larger than the next biggest move" and a spotlight icon. Place these callouts neatly without obscuring bars.

Include small labels above or within each bar showing the exact values "+18", "-9", "+6", "-24", "-3", and the totals "100" and "88". Include a compact legend in English with these exact labels: "Increase", "Decrease", "Total". Since the requested palette is monochrome ink, distinguish categories with deep charcoal, mid-gray, pale gray, and ink hatch patterns rather than color. Overall style: editorial data journalism illustration, FT / Bloomberg-grade chart aesthetics, vector-clean infographic layout, monochrome ink palette, precise newsroom graphic design, restrained typography, analytical and elegant mood, subtle paper texture optional, strong contrast for the outlier bar.

Add a small source / data-note strip at the bottom in English with this exact text: "Data note: Illustrative example for infographic design. Values are illustrative, not sourced." Ensure all headings, labels, legends, captions, metric names, axes, ticks, and callouts are sharp and fully legible in English. All text MUST be written in English (array). Every heading, label, caption, legend and metric name in the image must be in English — not English. Spell each English word correctly using English characters and diacritics. Numbers stay as digits, no fake authoritative sources cited, no watermarks Numbers labeled "illustrative" unless the user supplied specific sourced data. No fake authoritative sources cited (do not invent "Source: Reuters 2025" — use "Illustrative example" instead). No misleading axis truncation or scale manipulation.