Hello All,
I found this post and figured it out!
ESRI should really update the user guides on this to specifically mention that you must turn on a Reference and select Statistics for it to show up in the Fields {} of the Indicator. Pictures would be helpful as this feature is all hidden and I will be training people at work for decades on this lol.
In 2021 there are two options here that I know of:
1) Ensure that a Reference for the indicator has been set
Then the options to do the calculations show up
https://doc.arcgis.com/en/dashboards/get-started/indicator.htm
2) Use the Dashboards Beta and Arcade to do this manually or follow the instructions above as the beta too supports the original method.
Here is some sample code:
var percentCount = Floor($datapoint.count / $reference.count * 100)
var yardCount = $datapoint.count
return {
//textColor:'',
//backgroundColor:'',
topText: 'Caledon',
topTextColor: '',
topTextOutlineColor: '',
topTextMaxSize: 'large',
middleText: concatenate(yardCount, ' or ', percentCount, '%'),
middleTextColor: '',
middleTextOutlineColor: '',
middleTextMaxSize: 'medium',
//bottomText: '',
//bottomTextColor: '',
//bottomTextOutlineColor: '',
//bottomTextMaxSize: 'medium',
//iconName:'',
//iconAlign:'left',
//iconColor:'',
//iconOutlineColor:'',
//noValue:false,
//attributes: {
// attribute1: '',
// attribute2: ''
// }
}