foodintermediategermany
Stimmt so.
/ʃtɪmt zoː/
Keep the change.
Literal translation
It's correct like that.
When to use it
Standard way to tip in Germany — round up and say 'Stimmt so'. 10% is generous; 5% is fine.
In conversation
—Das macht 17,80. —Machen wir 19, stimmt so.
“—That's 17.80. —Make it 19, keep the change.”