In google analytics, you can show clicks and Click Through Rate (a percentage) on the same chart.
This is essentially multiple series, one series contains absolute values vs date, and the other contains CTR (a percentage) vs date.
Highcharts scales it's Y axis correctly to the max and min of each series, but I can't figure out how to show the percentages on the same chart, scaled correctly.
One way I thought of is to scale the values of the percentage to the max of all the other values from other series on the chart, but this changes the actual value of the % so even though the graph looks nice, the data is straight up wrong.
Is there any way to do this?