How to Say Keep the Change in Mandarin Chinese?

Hello, everyone. Welcome to today's Chinese lesson.

As far as I know, what some people usually do is to let the people providing service keep the change as tip and thank you.  So “keep the change” in Chinese Mandarin isng zhǎo qián”(不用找钱). “ng” means no need.  zhǎo” means return, qián” means money. So “ng zhǎo qián”(no need to return the money) means keep the change.