How to extract the percentages from a pie chart
A pie chart that prints no numbers still holds them: each slice's share is its angle.
What comes back
- One row for each slice: its name and its share in percent.
- Ring (doughnut) charts are read the same way.
What we measured
- From PDFs: 300 of 300 pie and ring charts read correctly, each share taken from the slice's own angle.
- From pictures: 25 of 25.
Steps
- Drop in the chart.
- Check the names against the legend.
- Copy the table or download it.
Questions
The shares do not add up to exactly 100. Why?
From a picture each share is the model's reading, so the total can be a little off. From a PDF the angles are exact.