100 percent vs one hundred percent

100 percent

• Completely, entirely, wholly. 

• Completely well. 

• excellent, wonderful, magnificent 

• complete, entire, whole 

• Wholly sure; confident in one's knowledge. 

one hundred percent

• Totally, completely. 

• Complete, entire, whole, perfect. 

• Completely sure. 

• Used other than figuratively or idiomatically: see one hundred, percent. 

• Well, good, okay.