Use a 100% stacked bar chart to compare profit margins across multiple products. The chart below is based on data from this Wall Street Journal article: http://online.wsj.com/news/articles/SB10001424052702303497804579242511374858016. The article highlights the insight that the Moto G margins are much lower than Galaxy S4 and iPhone margins. Here’s the way I would present the data:
I made a few changes to the 100% stacked bar to better highlight the margin differences:
- removed the X and Y axes
- added a data row to present the margins
- added a data column to present the series names and moved the labels to the left of the chart
- used contrasting colors from the Parade 15 pallette (http://www.mekkographics.com/support-and-learning/) on each segment to highlight differences among products.
I think this chart is more effective than the ‘rectangle chart in the WSJ article. What do you think?
Here’s the slide in PowerPoint for you to work with: