Singlestat panel result to assign to variable

I am using grafana 6.1.3
I am looking at the singlestat panel result, how to assign its current result to variable or there is a built in property for that to be able to use this value on different panel on the same dashboard
Or how to simply subtract two singlestat panels values and use this difference in threshold to generate notification

“I am using grafana 6.1.3”


That was released in April 2019 and superseded one week later.

Current version is 7.3.4 and there have been so many bug fixes and feature
enhancements since 6.1.3 that I thihnk it’s unlikely you can get assistance
with such an old version.