As discussed over ZenDesk ticket https://percona.zendesk.com/agent/tickets/171817, there are some cases when values that account for more than 100% can be seen in the CPU usage graph.
I think it would be nice to modify the plot to be able to see the maximum value, since as of now, the plot is fixed to a maximum of 100%.
Screenshots and discussions had so far can be checked there, if needed. For reference, I'm adding two screenshots here, too.
Other plot and exported data are in this gdoc, also: https://docs.google.com/spreadsheets/d/1BNAoK0bMQj0jHosA5564VyQbk32oIrA21FbmklJgiRo