My PrometheusMeterRegistry returns a very low decimal value for the system_cpu_usage metric (0.004593000743494424). I want to display this value in a Grafana dashboard as a percentage of the overall CPU usage. I can't find much about this metric in the Micronaut documentation and I don't want to make assumptions about what this metric means.
Which unit is this metric in and how could I convert this to a percentage value (from 0% to 100%)?