Weight-Loss Help with calculating calories

[Simonesr]

Hey everybody

I really suck at math, so i am hoping some of you can help.

I made a recipe last night. It is 2000 grams og food and it has 3000 calories. Of cause i am not eating all of it in one sitting, so i want to calculate how many calories are in 100 grams.
I just cant Seem to figure out how to get the right nummer..

I really Hope someone can help

 

[Llama]

To get from 2000 g to 100 g you have to divide by 20, so you do the same to the calories. 3000 divided by 20 is 150 kcal per 100 g of food.