re: How do most of you measure BF%?

Did a styku at my gym for a 5 week challenge...it said I was at 24.9....will do the end of challenge scan on Monday. I did isagenix, quit drinking, and worked out 6 days a week....I did have a little slip up on a work trip where I drank 3 nights...we will see where it is at on Monday but I've dropped about 10 lbs....the scan said I need to drop 17 to get to 17 percent body fat and I would reach my goal by mid march with current calorie intake and exercise routine...seems spot on with my weight loss