A lot of that would account for the extra carbs in there. Remember, you have 3 sources for calories:
Protein = 4 cal / gram (this is usually not used for energy, so you can often discount these)
Carbs = 4 cal / gram (fiber, which is a carb, can't be absorbed by the body, so you can subtract calories from fiber)
Fat = 9 cal / gram
So with the sugar based sauce, you are getting more of those energetic carbs, but honestly, (as you can see from the label) they don't add that much in the way of unhealthy components.