What Is a 100% Stacked Bar Chart?

A 100% stacked bar chart converts each category into a full-length bar so you compare percentage composition rather than raw totals.

Use it when the mix matters more than the total amount.

Start With the Raw Data

The raw data still begins as values, but the chart normalises them into percentages:

Category Online Retail Partner
North 45 35 20
South 30 50 20
West 55 25 20

Each category becomes 100%, then every segment shows its share of that total. This removes size differences and focuses attention on proportion.

What This Chart Helps You See

Channel share
Budget split
Segment composition

Common Ways to Use a 100% Stacked Bar Chart

  • Sales channel mix by region.
  • Budget allocation by department.
  • Customer segment composition over time.

How to Use the Live Example Below

Adjust the component values to see how each category's percentage mix changes.

Share of Total Per Category

100% stacked bars normalize each category to 100%, making it easy to compare shares even if totals differ.

Live Demo: Editable Series Data

Instructions: Adjust values and compare percentage shares.

Category 
Series 
Value 
Inserted values
Updated values
Deleted values
SoftwareNorth$4,500.00
SoftwareSouth$3,800.00
SoftwareWest$3,100.00
HardwareNorth$3,200.00
HardwareSouth$2,900.00
HardwareWest$2,600.00
ServicesNorth$2,800.00
ServicesSouth$2,400.00
ServicesWest$2,100.00
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The 100% Stacked Bar Share chart showing North series, South series, West series.

When to Use 100% Stacked Bars

  • When you need to compare composition independent of totals.
  • When each category has the same series.
  • When percentage share is more important than absolute value.