Marketing research figures don't add up.....

While watching the TV tonight, an advert came on for Gillette or L'Oreal men with the claim that it was the best product a man could get. At the end of the advert, the words "85% of 68 men agree" appeared to back up the adverts bold claim. Two things struck me.....

• Firstly, it seems a very small sample of men to use on which to claim that the product is the best a man could get and.....

• Secondly, when I worked out 85% of 68, the answer was 57.8!! Does this mean that 57 full men and 4/5 of a further man agreed?

If anyone can explain this strange mathematical equation, I would be keen to hear from you.