Measure-driven data label with multiple lines

Hello,

I'm trying to make use of the new measure-driven data labels to add a label to a line chart with the actual value and then the percentage variance from target underneath it.

I can create a measure that will do this in a card but in the chart both elements of the label appear on the same line still. Is there a way to get them on two lines or is this not implemented?

This is my measure code:

Label = 

VAR newline = 
"
"

RETURN

[Target] & newline & [% variance to target]

Thanks!