How can I edit the tooltips that appear on chart visualizations?

I know that I can edit the tooltip, but I’d like a way to add dynamic info to the tooltip and not sure how to do this. Namely, I’d like to add a percentage to the tooltip. Screenshot below, any advice is appreciated. Thanks!

I believe the highcharts API and a before render snippet is your only option here.

Thanks Matt! For anyone interested, I was able to use the following code during ‘Before Load’ to modify the tooltip:

var chartObj = arguments[0], $ = skuid.$; $.extend(chartObj,{ tooltip: { enabled:true, formatter: function() { return "u25CF " + + ": <b>" + this.point.y + "</b><br/>" + CUSTOMVARIABLE + "%<br/>"; } } }); 


Glad you were able to figure it out! Thanks for sharing your solution!!!