61일차. one hundred percent

one hundred percent
This is an exaggeration that shows that you are strongly in support of something. It's often used in business and sales situations with phrases having to do with the agreement:

e.g.)

I'm 100% in agreement.
We're 100% committed to making this partnership work.
They're on board 100%

 

출처: https://www.phrasemix.com/examples/im-behind-you-on-this-one-hundred-percent