Lowest: paper round as a 13-14 year old. $ 5.60 per week to fold and deliver about a thousand catalogs for a local supermarket. I'm still annoyed that my parents didn't tell me I was being ripped off. The thing took literally all weekend including Friday night. I was diligent too, never dumped them. Never got a raise, or a free mars bar or coke from his fridge and he have me a hand written 2 sentence reference when I left. Stingy doesn't do the merkin justice.
Highest is my current (new) job in sales, working for an IT company in the legal sphere