A large hamburger (e.g., Whopper) sandwich contains 628 kcalories and 36 grams of fat. Approximately what percentage of the total energy is contributed by fat?

Question

Quizplus · Accepted Answer

To determine the percentage of energy contributed by fat, you need to divide the number of calories from fat (36 grams x 9 kcal/gram) by the total number of calories (628 kcal) and then multiply by 100. 
(36 x 9 = 324 kcal from fat) 
(324/628) x 100 = 51.6% 
Approximately 52% of the total energy is contributed by fat.

A Large Hamburger (E