Waterfall chart

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A waterfall chart is a form of data visualization that helps in understanding the cumulative effect of sequentially introduced positive or negative values. These intermediate values can either be time based or category based. The waterfall chart is also known as a flying bricks chart or Mario chart^{[dubious – discuss]} due to the apparent suspension of columns (bricks) in mid-air. Often in finance, it will be referred to as a bridge.

Waterfall charts were popularized by the strategic consulting firm McKinsey & Company in its presentations to clients.^[1][2]

Complexity can be added to waterfall charts with multiple total columns and values that cross the axis. Increments and decrements that are sufficiently extreme can cause the cumulative total to fall above and below the axis at various points. Intermediate subtotals, depicted with whole columns, can be added to the graph between floating columns.