Dual Y-Axis: Y1 and Y2 Axis

Sometimes the scales can be very different between two columns if you assigned both of them to Y1.

You can assign one of them to Y2, which will allow the two columns values to be displayed with different scales.

Select 'Y1/Y2 Assignment' from the Y Axis menu. of the column you want to assign to Y2 Axis.

Check 'Assign to Y2'.

This will assign the column to Y2 Axis with a different scale from the Y1 scale.