OmniDocHow to make a PPT pie chart: proportion chart and percentage display
Explain clearly the method of inserting a pie chart into PPT and allowing each sector to directly display the percentage, including how to organize the data, how to set labels, how to deal with multiple categories, and how to check whether the proportions are accurate after completion.
Key points of this article
- Pie charts are suitable for expressing the composition of each part of the whole. The sum of the parts should equal the total, and the categories should be mutually exclusive.
- The percentage label is automatically calculated by the software based on the original value. Fill in the original number when inputting. Do not manually convert and then mix them.
- When you only want to see the proportion, turn on the percentage label and remove the legend. Write the category name directly on the label for easier readability.
- When there are more than 6 categories, merge the items with a small proportion into "Others", or use a bar chart instead to avoid overlapping labels.
- When finished, check that the sum of the percentages agrees with the whole, and check labels and numbers before translating or projecting.
If you want to show the proportions of various parts in a PPT, such as market share, budget allocation or the composition of questionnaire options, a pie chart is usually the appropriate choice. However, after inserting a pie chart, many people only see a circle of color blocks. The numbers are either original values or not displayed at all. Readers still cannot calculate how much each block occupies. This article is written for people who need to make reporting materials. It explains how to insert a pie chart and how to directly display the percentage in each sector.
Percentage graphs are different from regular numeric labels: numeric labels show the original number you entered, and percentage labels show each block's proportion of the total. Both can be turned on at the same time, or only one can be turned on. After reading this, you'll be able to create a pie chart that you can put directly into your presentation, and know where to check when something goes wrong.
How to make a pie chart in PPT chart so that the proportion can be clearly displayed? One sentence conclusion
Let's get straight to the conclusion: first organize the data into two columns of "category plus value", insert the pie chart and turn on the label option to display percentages, then remove the legend and write the category name on the label if appropriate.
| your situation | Recommended practices | reason |
|---|---|---|
| I only want to see the proportion of each part, and there are no more than 5 categories. | Add percentage labels to pie chart and remove legend | Readers can see the ratio at a glance without having to check colors back and forth. |
| The data is the amount or number of people, it depends on the specific value. | Display values and percentages simultaneously | Have both original quantity and proportion, but leave enough space for labels |
| There are many categories (more than 6) or many tiles | Combine small items into "Other", or use a bar chart instead | Small sectors are difficult to identify and labels easily overlap |
| To compare the changes in the proportions of two sets of data | Place two pie charts side by side, or use a stacked bar chart instead | It is inconvenient to compare sizes between pie charts |
| The data has been converted into proportions, and the sum of each item is equal to the whole | Directly enter the proportion as a numerical value | Avoid deviations in software secondary calculations |
Before you start: Confirm these points first
- Whether the data is suitable for pie charts. The pie chart expresses the composition of the whole, and the sum of the parts should equal the total. If the categories are not mutually exclusive (for example, a person can select multiple options at the same time), the proportions of each block have no clear meaning, and a bar chart is more suitable in this case.
- Whether the input is original value or proportion. The percentage label is automatically calculated by the software based on the value you enter. If you enter a converted percentage, don't mix it with the original value, otherwise the sum of the items may deviate from the whole.
- Whether the category name is short. The category name will be displayed on the label. If the name is too long, the pie chart will be squeezed. Shorten the name to a few words in advance so readers can read it faster.
- Play scenes and colors. When projecting, the font size should be large enough and the color contrast should be obvious; if it will be printed in black and white, make sure that each block can be distinguished in grayscale.
- Whether it needs to be translated into other languages. If you want to show the presentation to readers in another language, you can make a pie chart first, and then use OmniDoc to translate the PPT file (supports .pptx format). After translation, check page by page whether the category names and numbers in the chart are still correct.
Steps to insert a pie chart into PPT and display percentages
- Organize data. List two columns in the table: write the category name in the first column, and write the numerical value in the second column. For example, "East China 35, South China 25, North China 20, Others 20", use original numbers for the values, do not write them in percent sign format in advance.
- Insert pie chart. Select the page where the chart is to be placed in the presentation, use the chart function of the desktop office software to insert the chart, and select pie chart as the chart type.
- Replace with your own data. Open the data editing area of the chart, replace the sample content with your categories and values, and after closing, confirm that the pie chart has been updated with the data.
- Turn on the percentage label. Select the pie chart, open the settings of the data label, and check the display percentage. At this time, the proportion of each sector to the total will appear.
- Add numerical values or category names as needed. If you still want to see specific numbers, check the display value at the same time; if you need to write a category name on the label, check the category name. When both are turned on at the same time, pay attention to check whether the labels are crowded together.
- Adjust the label position. Move the label to the outside of the sector, or set it to a leader style, the label of the small sector will be clearer.
- Process the legend. If the category name has been written in the label, you can turn off the legend, and the screen will be cleaner; if the label only displays percentages, keep the legend to facilitate color comparison.
- Adjust colors and sorting. Adjacent sectors use contrasting colors, and the same color family is only used for the same set of related categories. Arrange the larger sectors at the front so that readers' eyes will naturally fall on the key points.
Check each item after completion
Once you have the pie chart, go through it one by one according to the table below, especially the numbers and labels.
| Check items | How to see | What to do if there is a problem |
|---|---|---|
| Is the sum of the percentages consistent with the whole? | Add up the percentages of each block, and after rounding it should make a complete circle. | When the deviation is large, check whether the original data is missing items or whether the decimal places are truncated. |
| Are the values in the data table correct? | Check each item against the original form | After modifying the data table, confirm that the pie chart has been refreshed |
| Whether labels overlap or are cropped | Enlarge the page to view small sectors | Merge subcategories, reduce decimal places, or move labels to the outside |
| Can the colors be distinguished? | Preview in grayscale, or view in a projected environment | Switch to a color with a greater difference in brightness |
| Does the title describe the content? | Can the reader see what is being compared? | The title states "Proportion of such-and-such", and indicates the data source and time. |
| Translated version | Are the category names and numbers consistent with the original text? | Modify according to the original text; when using machine translation, please review the important figures manually. |
❓ Frequently Asked Questions (FAQ)
1. Why are the percentages in the pie chart different from what I calculated by hand?
This is usually caused by rounding, or the original data has decimals and the label only displays integers. You can increase the number of decimal places in the label and then check the sum of the original values.
2. Can a pie chart display values and percentages at the same time?
Yes, just check both options at the same time. However, when the labels are long, it is easy to overlap. It is recommended to enlarge the chart or keep only one type of label.
3. There are too many categories, what to do with the pie chart?
When there are more than 6 categories, it is recommended to combine the smaller ones into "Others" or use a bar chart instead. Bar charts make it easier for readers to compare the size of items.
4. What is the difference between a donut chart and a pie chart?
A donut chart is a pie chart with a hollow in the middle, and it serves the same purpose of displaying proportions. The space in the middle can be used to place totals or key conclusions, which is suitable for highlighting a core number on a page.
📝 Summary
The key to making a proportion chart in PPT is three steps: organize the data into categories and add values, use percentage labels to replace hand calculations, and finally check whether the sum and label of each item are clear. By following this sequence, a pie chart can accurately and visually illustrate the proportions of each part.
