Following the nutritional label on a jar of peanut butter, you determine that 1 ounce of the peanut butter contains 115 calories and 9 grams of fat. what percent of the calories come from that?

Answer 1

http://kidshealth.org/teen/food_fitness/nutrition/fat_calories.html

Scroll down and go to page 2. Scroll down again and find the formula.