A large 'percent' [=(more commonly) 'percentage'] of their profits comes from online sales.
I'm 99.9 'percent' sure that I am right. [=I am almost completely sure that I am right]
I hate to admit it, but he's right 'ninety percent of the time'. [='most of the time']
(..) - You got a job? I was laughed out of twelve interviews today. And yet you're surprisingly upbeat. You would be too if you found John and David boots on sale, fifty percent off! Oh, how well you know me... They're my new 'I don't need a job, I don't need my parents, I've got great boots' boots! (..)1994 TvShow: Friends Title: The One Where Monica Gets a Roommate Season: 1 Episode 1