Covid-19 deaths may be significantly under-reported. The New York Times estimated that there could be 26,000 unreported deaths by comparing the normal number of deaths, actual deaths, and number of deaths attributed to COVID-19. The excess COVID-19 deaths are largest in Spain, France, England & Wales and New York City, as shown in these cascade charts.
Unreported COVID-19 Deaths in 4 Cascade Charts with Bar Comparison Lines
How I Made These Unreported COVID-19 Deaths Cascade Charts
The unreported COVID-19 deaths data for Spain is below:
Here's how I made the top left cascade chart:
- insert four charts into PowerPoint using the Insert Multiple Charts button in the Mekko Graphics Charts ribbon
- delete all but the one in the upper left
- open this chart and change its type to cascade
- the three data points taken from a table in the New York Times article and used to create the chart were the percentage above normal, excess deaths, and reported COVID-19 deaths
- formulas were used to calculate normal number of deaths, possible COVID-19 deaths and total deaths
- choose Switch Bars and Series to treat the rows as bars
- hide the bar with pct above normal data and show total deaths as a total cascade bar
- use data scale to divide numbers by 1,000
- add segments links and the bar comparison line with values and percentage
- format the bar totals and bar comparison line values to have a K as a suffix and to be one decimal place
- adjust internal chart margins
- add the x axis title and make bold
- hide the x axis line and y axis
- adjust the internal chart margins
- add axis breaks and format as a diagonal line
- change segment colors
I then copied this chart and updated the data to create the other three charts on the slide.
Take This Chart and Make It Your Own
Download this chart and edit it using Mekko Graphics. See more bar charts in our chart gallery. Here are some other charts that may be of interest:
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