I give 110% to my job every week.
40% on Monday, 30% on Tuesday, 20% on Wednesday, 15% on Thursday and 5% on Friday.
Honestly, I think people who say they are going to ‘give 110%’ are people that usually only give about 70%, but say they’re doing their best…then decide maybe they’ll give 80% or so. (Since they already say they are giving 100%, they have to go somewhere, so 110% sounds good to them.)