Net-SNMP_CPU.UnDPIn reference to: Using the new OID ssCpuRawIdle: 1.3.6.1.4.1.2021.11.53.0 Transform FormulaTruncate({100-{ssCpuRawIdle}/({ssCpuRawKernel}+{ssCpuRawIdle}+{ssCpuRawSystem}+{ssCpuRawUser}+{ssCpuRawWait}+{ssCpuRawnice})*100},2)