A waterfall chart is a form of data visualization that helps in understanding the cumulative effect of sequentially introduced positive or negative values.
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.
[3] A waterfall chart can be used for analytical purposes, especially for understanding or explaining the gradual transition in the quantitative value of an entity that is subjected to increment or decrement.
[4] Waterfall charts are also commonly used in financial analysis to display how a net value is arrived at through gains and losses over time or between actual and budgeted amounts.