Unsweetened Baking Chocolate WP2

Nutrition Facts:

calories:642
How long would it take to burn off those 642 KCal from Unsweetened Baking Chocolate based on your personal gender,weight at ?Sweets
Fat(g):52.31
Saturated Fats(g):32.277
Carbohydrates(g):28.42
Fiber(g):16.6
Sugars(g):0.91
Protein(g):14.32
Cholesterol(mg):2
Calcium(mg):101
Iron,Fe(mg):17.4
Potassium, K(mg):830
Magnesium(mg):327
Vitamin A, IU (IU):0