Waterfall: Variable Width Column Chart (Merimekko)

Definition:

A waterfall chart that has variable column width is used to show 2 to 3 dimensions on a single chart. It is most often shown as a histogram that has multiple information factors.

Uses: 

Limitations:

    Demonstrations:

    Step-by-step process:

    Template for capturing data:

    Output representation and recommendations:

    The chart itself is the best form of presentation. The recommendations need to take into account the impact of changes. It is suggested that you create a new chart with the proforma performance charted after the implementation of the recommendations. As an example, you may recommend that a large volume product that is slightly unprofitable be eliminated. But because that product is currently covering a number of the fixed cost of the business, if it is eliminated the entire business may be less profitable because the remaining products have to cover the fixed costs that used to be covered by the eliminated product. If you check the outcome of the proforma chart, you can avoid bad recommendations.

    Examples:

     Superuser example

    Additional resources:

    Variable Width Column Charts (Cascade Charts)

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