Pie and doughnut charts in Excel - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a pie chart used for in Excel?

A pie chart shows how parts make up a whole. It displays data as slices of a circle, where each slice represents a category's proportion.

beginner

How does a doughnut chart differ from a pie chart?

A doughnut chart is like a pie chart but with a hole in the center. It can show multiple data series as rings, making it easier to compare groups.

beginner

How do you create a pie chart in Excel?

Select your data including labels and values, then go to Insert > Charts > Pie Chart. Choose the style you want and Excel will draw the chart.

beginner

What is the purpose of data labels in pie and doughnut charts?

Data labels show the value or percentage for each slice or ring segment. They help you understand the exact size of each part.

beginner

Why should you avoid using too many slices in a pie chart?

Too many slices make the chart hard to read and understand. It’s better to group small categories or use other chart types for clarity.

What does each slice in a pie chart represent?

A A data label

B A part of the whole data

C A separate chart

D A chart title

Each slice shows a part of the total data, representing a category's share.

Which Excel menu do you use to insert a pie chart?

A Review > Comments

B Data > Sort

C Formulas > Functions

D Insert > Charts

Pie charts are inserted from the Insert menu under Charts.

What is a key visual difference between a pie chart and a doughnut chart?

A Pie chart shows lines

B Pie chart has multiple rings

C Doughnut chart has a hole in the center

D Doughnut chart uses bars

Doughnut charts have a hole in the center, unlike pie charts.

Why add data labels to pie or doughnut charts?

A To show exact values or percentages

B To change chart colors

C To add a chart title

D To sort the data

Data labels display the value or percentage for each slice or segment.

What happens if you use too many slices in a pie chart?

A The chart becomes hard to read

B The chart updates automatically

C The chart changes to a bar chart

D The chart adds a legend

Too many slices clutter the chart and make it confusing.

Explain how to create and customize a pie chart in Excel.

Think about the steps from selecting data to final touches.

Describe the differences and uses of pie charts versus doughnut charts.

Focus on visual differences and when to use each chart.

Practice

1. What is the main purpose of a pie chart in Excel?

easy

A. To display data trends over time

B. To compare two sets of data side by side

C. To show parts of a whole as slices of a circle

D. To list data in rows and columns

Solution

1. Step 1: Understand pie chart basics

   A pie chart divides a circle into slices representing parts of a whole.

2. Step 2: Compare with other chart types

   Unlike line or bar charts, pie charts focus on showing proportions, not trends or comparisons.

3. Final Answer:

   To show parts of a whole as slices of a circle -> Option C

4. Quick Check:

   Pie chart = parts of whole [OK]

Hint: Pie charts show slices of a circle representing parts [OK]

Common Mistakes:

• Thinking pie charts show trends over time
• Confusing pie charts with bar charts
• Using pie charts for unrelated data types

2. Which of the following is the correct way to insert a doughnut chart in Excel?

easy

A. Select data, press Ctrl+C, then Ctrl+V

B. Select data, go to Insert tab, click on Doughnut chart icon

C. Right-click data and choose 'Create Pie Chart'

D. Use the formula =DOUGHNUTCHART(A1:A5)

Solution

1. Step 1: Locate chart insertion method

   Excel inserts charts from the Insert tab where chart types are listed.

2. Step 2: Identify doughnut chart option

   Under Insert, the Doughnut chart icon is available to create this chart type.

3. Final Answer:

   Select data, go to Insert tab, click on Doughnut chart icon -> Option B

4. Quick Check:

   Insert tab -> Doughnut chart icon [OK]

Hint: Insert tab has all chart types including doughnut [OK]

Common Mistakes:

• Trying to create charts with formulas
• Copy-pasting data instead of inserting charts
• Right-click menu does not create doughnut charts

3. Given this data in cells A1:B4:
Category | Value
Food | 30
Rent | 50
Utilities| 20
What percentage will the 'Rent' slice show in a pie chart?

medium

A. 50%

B. 33.3%

C. 30%

D. 20%

Solution

1. Step 1: Calculate total value

   Total = 30 + 50 + 20 = 100

2. Step 2: Calculate Rent percentage

   Rent = 50; Percentage = (50 / 100) * 100 = 50%

3. Final Answer:

   50% -> Option A

4. Quick Check:

   Rent is half of total = 50% [OK]

Hint: Divide slice value by total sum, multiply by 100 [OK]

Common Mistakes:

• Adding percentages instead of values
• Using wrong total sum
• Confusing category names with values

4. You created a pie chart but the slices do not add up to 100%. What is the most likely cause?

medium

A. Chart is not selected

B. Chart type is set to bar chart

C. Data labels are missing

D. Data includes blank or zero values

Solution

1. Step 1: Check data values

   Blank or zero values reduce total sum, causing slices not to add to 100%.

2. Step 2: Verify chart type and labels

   Bar chart or missing labels do not affect slice percentages adding to 100%.

3. Final Answer:

   Data includes blank or zero values -> Option D

4. Quick Check:

   Missing data affects pie slice totals [OK]

Hint: Check for blanks or zeros in data range [OK]

Common Mistakes:

• Confusing chart type with data issues
• Assuming labels affect slice sums
• Not checking data completeness

5. You want to create a doughnut chart showing sales by region, but also want to highlight the top region slice with a different color. What is the best way to do this in Excel?

hard

A. Create the doughnut chart, then click the top region slice and change its fill color

B. Use a formula to color the slice automatically

C. Insert a pie chart instead and change the chart type later

D. Add data labels and remove the legend

Solution

1. Step 1: Insert doughnut chart with sales data

   Select data and insert a doughnut chart from the Insert tab.

2. Step 2: Highlight top region slice

   Click the slice representing the top region, then change its fill color manually.

3. Final Answer:

   Create the doughnut chart, then click the top region slice and change its fill color -> Option A

4. Quick Check:

   Manual slice color change highlights parts [OK]

Hint: Click slice, then change fill color to highlight [OK]

Common Mistakes:

• Expecting formulas to color slices automatically
• Changing chart type instead of slice color
• Removing legend instead of highlighting slice