I received successfully the toner level data from my Canon-printer with a SNMP custom sensor, but it won't display the returned data as percentage value in the diagram. In the field Message, the returned value is visible as number (without %). I have two canals "respond time" and "down time" (sorry if these two expressions aren't correct, I have my PRTG set up in german).
How can I display the returned value in percent in a graph?
I already checked this post, but I didn't get it... https://www.paessler.com/manuals/prtg/snmp_custom_string_sensor
I hope you can help me.
Kind regards, Eddie