Hi @bdietz400, and welcome to the community.
Using gauge directly isn’t possible at the moment. In your case you could try the new Stat feature in Grafana 10, the “Show percent change” (Stat | Grafana documentation)
Another option would be playing arround with the Apache E-Charts library Plug-in. The learning curve is bigger but it should work with something like the Gauge Multi Title
Hope it helps.