give a hundred (and ten) per cent
US /ɡɪv ə ˈhʌndrəd (ænd tɛn) pər sɛnt/
UK /ɡɪv ə ˈhʌndrəd (ænd tɛn) pər sɛnt/

1.
to make the maximum possible effort; to try as hard as one can
:
•
If we all give a hundred per cent, we can win this game.
•
The coach expects every player to give a hundred and ten per cent in every practice.