The Calorie Table serves to find out how much a particular food contains calories and macronutrients or proteins, fats and carbohydrates.
1 gram of protein releases 4 kilocalories (kcal), 1 gram of carbohydrates also releases 4 kilocalories while 1 gram of fat releases 9 kilos of calories.
I recommend that you read the Nutrition Values chart carefully so that at the next meal you know exactly what you enter into the body when you eat a particular food and thus improve your health.