Nutrition Facts for Cinnabon

First, to All you Dads, gram pas, future dads I hope you had a nice Father's Day, Now to my question For most products they give you amount of calories plus how many carbs, for example Nabisco chewy granola bars, 1 bar is 100 calories and 17 carbs plus protien is 2gram etc. Anyone know how the "experts" figure it out (or break it down) The other day my husband picked up one of his weaknesses (A cinnabon) I know from a weight watches view one cinnabon totals there total of intake for almost two days, and for us the only thing healthy is the cinnamon (yeah right) anyway if someone could let me know how they break things down I would appreciate it, if noone knows that be fine too I was just curious have anice day.

Found on the web for Cinnabon - Nutrition Facts
Serving Size: 1roll
Amount per Serving
Calories 813 Calories from Fat 110
% Daily Value *
Total Fat 32g 49%
Saturated Fat 8g 40%
Trans Fat 5g
Cholesterol 67mg 22%
Sodium 801mg 33%
Total Carbohydrate 117g 39%
Dietary Fiber 4g 16%
Sugars 55g
Protein 15g 30%
Est. Percent of Calories from: Fat 35.4%, Carbs 57.6%, Protein 7.4%