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Building a donut chart with labeled legend

Oakmark Bank’s Escalations Team is reviewing how often customer issues are escalated—and at which escalation levels.

Instead of scanning raw tables, they want a clear visual that shows both the total number of escalations and the proportion handled at each escalation level.

You’ll help them build a donut chart that highlights these patterns at a glance.

This exercise is part of the course

Visualizations in Sigma

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