A very common problem with charts is how to show very big numbers (e.g. revenue) and very small numbers (e.g. gross profit %) on the same chart.
As shown below, charts with very differently sized numbers won’t show properly.
So here we have a chart and we want to see the % costs compared to the costs, but the red line is just a straight line at the bottom. This is as a result of the scale.
The vertical scale goes from 0 to 500, so the number 10% (0.10) is right at the bottom. It doesn’t matter how big the percentage. On this scale it will always be at the bottom.
First problem- how to click on the series
The first problem is often being able to see the series.
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