Hello everyone!
I have the following chart and I would like to know how to read it. My approach is the following:
Rectangles over _ _ _ _ line represent an increase
Rectangles behind _ _ _ _ line represent a decrease
In this order of ideas:
Margin deterioration decreased by 1.8%
Higher costs decreased by 0.1%
Operating efficiencies increased by 2.3%
Fines and other increased by 0.8%
Capital costs decreased by 0.4%
Is this approach right?
Thank you very much.
Not quite. The waterfall chart breaks down the difference between the left total bar and right total bar into it's drivers. Meaning:
etc...
All effects combined had a net positive impact of 0.8% on ROE between 2014 and 2015.
Hi Floyd,
Yes, that's right!
Now, just to make sure we're clear on this, in the statement "Margin deterioration decreased by 1.8%", just make sure you understand that this means "Margin deterioration contributed to a 1.8% percentage point decrease in ROE from 2014 to 2015"
All effects that are spaced out in the middle refer to the baseline seen in the very left bar. A transparent way of showing how the rvery right bar came to be.
Doing stacked bars, i.e. combining those views into 1 will only allow you more aggregate and imprecise representations.
