Introduction
Combo charts let you show two or more types of charts together in one view. This helps compare different kinds of data clearly, like showing sales numbers as bars and profit margin as a line on the same chart.
When you want to compare sales volume and profit margin side by side in one chart.
When you have data with different units, like revenue in dollars and number of customers.
When you want to highlight trends with a line chart while showing actual values with bars.
When you want to combine a column chart and a line chart to show two related data sets.
When you want to save space by showing multiple data types in one chart instead of separate charts.