The workbook contains two types of charts: scatter charts and histograms.
A scatter chart shows the relationship between two variables, with each selected transaction appearing as a point showing the transaction's values for the two variables.
A histogram shows how the selected transactions are distributed across the range of a given variable. For example, the Trans by Revenue histogram shows how many transactions fall into each percentile of the revenue range, with the minimum revenue at the first percentile (1%) and the maximum revenue at the one hundredth percentile (100%).
The histograms can share a common Y axis scale, or can be scaled independently. See Common Histogram Y Axis.