Customize tooltip with callback function

[RHaughton]

Hello,

Is there a way to customize the tooltip values? I would for example want to transform 0.43 to 43%.

I managed to do it for the linear cartesian ticks using the callback function, but for tooltips I can't seem to find the Callback function which is used in Chart.js.

Many thanks for your help and for your work.

Best,
R.

[evangunter]

Unrelated, but how did you add the callback to the ticks?