Confused by Ken Ham Math

Help me out, friends! I used to be good at math, but I've since lost all of my skillz. Let's say I give you this:Of all the 20 to 29-year-old people who were virgins but no longer are so:95% were virgins during elementary and middle school years55% were virgins during high school11% were still virgins during collegeI would be horribly mistaken to say that "11 percent of those who lost their