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You created a pie chart but it shows only one slice with 100%. What is the most likely cause?

medium📝 Formula Fix Q6 of 15
Power BI - Basic Visualizations
You created a pie chart but it shows only one slice with 100%. What is the most likely cause?
AThe data source is empty
BThe data contains negative values
CThe category field is missing or not added
DThe chart type is set to bar chart
Step-by-Step Solution
Solution:

  1. Step 1: Check category field in pie chart

    Pie charts need a category field to split data into slices.

  2. Step 2: Understand effect of missing category

    Without category, all data sums as one slice showing 100%.

  3. Final Answer:

    The category field is missing or not added -> Option C

  4. Quick Check:

    Missing category = single 100% slice [OK]
Quick Trick: Always add a category field to split pie slices [OK]
Common Mistakes:
  • Assuming negative values cause single slice
  • Confusing chart type settings

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