This guide provides an overview of waterfall charts and how they can be used to visually represent data. Waterfall charts are a type of chart used to display cumulative effects of sequential changes, such as the cumulative effect of positive and negative values. This guide will explain what waterfall charts
From Wikipedia
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 due to the apparent suspension of columns (bricks) in mid-air. Often in finance, it will be referred to as a bridge.