Sankey Charts: Visualising Movement Across Stages

Traditional charts like stacked bars can show absolute values across categories, but they fall short when it comes to highlighting how quantities move through multiple stages. You can see how much you have at each step, but not how things connect or where losses happen. It’s hard to trace the journey or spot where leads drop off.

Sankey charts fix this by mapping flows directly between stages. The width of each stream represents its volume, so conversions, drop-offs, and imbalances stand out right away. They turn detailed numbers into a clear, intuitive picture of movement.

Our Use Case: Tracking Lead Flow from Region → Channel → Outcome

This chart helps us answer a critical question:
How do leads move across regions, through channels, and into outcomes?

Key takeaways from our Sankey Chart:
Complete Flow — See the full journey of leads from start to finish in one view
Drop-offs & Bottlenecks — Instantly spot where leads are lost along the way
Channel Performance — Compare how different channels convert to outcomes

Sankey charts highlight not just the numbers, but the paths those numbers take. Instead of disconnected numbers, they reveal connections, losses, and efficiencies — making it easier to act on what matters most.

At Perceptive Analytics our mission is “to enable businesses to unlock value in data.” For over 20 years, we’ve partnered with more than 100 clients—from Fortune 500 companies to mid-sized firms—to solve complex data analytics challenges. Our services include Advanced Analytics, Generative AI, and Business Intelligence (Tableau, Power BI and Looker) turning data into strategic insight. We would love to talk to you. Do reach out to us.

Our Work

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You have crafted a powerful analytical tool for us. Thank you.

Alan Benjamin
Principal, Benjamin Realty Advisors

I have been working with Chaitanya and Perceptive Analytics for about 20 months now. They did BI / reporting and excel tool development. Their work helped us in channeling our periodic reports to the senior and operational management. The team exceeded my expectations. Chaitanya would ask thought provoking questions that trigger a new line of thinking. They created good dashboards so our senior team can quickly interpret reports. We were able to make progress because the team knew finance and tools they created were easy to implement.

Samir Lavani
CFO at Pearl Hospitality

Chaitanya and the Perceptive Analytics team worked on multiple strategic projects that involved Tableau data visualizations. Perceptive's work (~ 1 year) led to successful launch of our portal - this was an important milestone for us. Visualizations created were insightful, easy to understand and visually attractive. The team often suggested ways to show data in more intuitive way so our audience can understand it. They also knew Tableau well that helped in customizing it for our purposes. The team worked hard to finish the project on time managing expectations. I look forward to working with Perceptive on other projects.

Haroon Yaqoob
Principal at Nomenclature Inc.