Yup, Carbolite are tricksters.
Here's a translation of the label. One milk choc. bar contains
--259 calories
--161 calories from fat
--17.5 grams of fat
--10.5 grams of saturated fat
--1.12 grams of carbs (not including maltitol)
--7 grams of protein
--So approx 65.52 calories from maltitol, then divide that by 4 or 4.32(don't know which one?), then thats how many grams of maltitol there is, approx.