Waterfall Chart
Explains how positive and negative contributions produce a final total.
What question it answers
Which positive and negative contributions explain the change from start to finish?
Where to use it
Finance and variance analysis showing how gains and losses move a starting value to an ending total.
When to use it
Use it to explain how sequential positive and negative contributions bridge a starting value to an ending value.
When not to use it
Avoid it when the sequence is not additive or when users only need the final category totals.
Responsive design
Keep the start/end totals and contribution order visible; reduce labels or allow horizontal access rather than squeezing every bar.
Arabic and RTL
Keep positive/negative contribution order consistent with the analytical sequence; localize labels without mirroring the mathematics of the bridge.
Anatomy
- Chart context
- Names the start value, the end value and the unit, so the bridge between them is the question.
- Contribution bars
- Floating bars add or subtract from a running total. Colour plus a sign (+ / −) marks increases and decreases.
- Value scale
- One scale for totals and changes so every step is comparable.
- Category axis
- Lists start, each contribution in order and the end total. The order is part of the explanation.
Accessibility
- Use signs, labels and text—not color alone—to identify increases, decreases and totals.
All lessons
- Bar Chart — Compares values across categories using length on a common scale.
- Line Chart — Shows change across an ordered sequence, most often time.
- Area Chart — Emphasizes magnitude over an ordered sequence by filling the area under a line.
- Pie / Donut Chart — Shows a small number of parts that make up one meaningful whole.
- Scatter Plot — Reveals relationships, clusters and outliers between two numeric variables.
- Histogram — Shows the distribution of a numeric variable across value ranges.
- Box Plot — Summarizes distribution, median, spread and potential outliers compactly.
- Heatmap — Uses color intensity across a matrix to reveal patterns and concentration.
- Treemap — Shows hierarchical part-to-whole relationships through nested rectangles.
- Funnel Chart — Shows how a population changes through ordered stages of a process.
- Waterfall Chart — Explains how positive and negative contributions produce a final total.
- Sparkline — Shows a compact trend without the full framing of a standard chart.
- Gauge — Shows one value within a bounded range when position against a threshold matters.
- Combo Chart — Combines compatible visual marks when two related measures need coordinated comparison.
- Geographic Data Map — Maps values to locations or regions when geography is part of the question.
- KPI / Stat Card — Presents one important metric with enough context to judge its current value and change.
- Data Table — Presents structured records in rows and columns, with table-level search, filtering, sorting, selection and pagination treated as parts of the whole component.
- Dashboard Card / Panel — Groups one coherent dashboard task, metric or visualization into a bounded region with clear hierarchy.
- Filter Bar — Places the most important scope controls close to the data they affect.
- Filter Panel — Collects a larger set of filtering controls in a dedicated surface.
- Date Picker / Date Range Picker — Lets users choose one date or a bounded time range for reports, filters and analytics.
- Sidebar Navigation — Provides persistent access to major dashboard destinations and groups.
- Top App Bar — Holds page identity, global actions and high-priority controls at the top of an application.
- Breadcrumbs — Shows hierarchy and provides a path back through nested dashboard levels.
- Tabs — Switches between peer views inside the same dashboard context.
- Alert / Banner — Communicates important contextual or page-wide information that should remain visible until understood or resolved.
- Toast — Confirms a brief asynchronous outcome without blocking the current task.
- Notification Center — Collects system and workflow updates that users may need to revisit.
- Dropdown / Overflow Menu — Moves lower-priority or contextual actions into an on-demand menu.
- Modal / Dialog — Creates a focused temporary task that may block interaction with the underlying dashboard.
- Drawer / Side Panel — Opens contextual controls or details from an edge while preserving the page behind it.