Chump Change Meaning

(chiefly US, idiomatic) An amount of remuneration, reward, or other monetary recompense considered to be insultingly small.

Example:   He spent $300,000 for his new car, but that's chump change for a billionaire like him.
  If you sell one of those cars, your commission will be chump change.
  I don't work for chump change. I quit!