百分百

nǐ bǎi fēn bǎi què dìng suǒ mén le ma

你百分百确定锁门了吗？

Are you absolutely positive you locked the door?

zuò rèn hé shì wǒ dōu yào bǎi fēn bǎi tóu rù

做任何事我都要百分百投入。

I have to be completely devoted in everything.