Здравейте, моля за помощ.

тук е условието на задачата:

https://judge.softuni.bg/Contests/Practice/Index/2275#6

а тук кода : https://pastebin.com/kg7gr34L

Слагам кода и във въпроса. Предварително благодаря.

Тези два реда ми дават стойност 0 като резултат и не мога да разбера защо?

int percentageFoodDog = totalAmountFoodDog / totalAmountEatenFood;

int percentageFoodCat = totalAmountFoodCat / totalAmountEatenFood;

package Exams.E28_29_2020;

import java.util.Scanner;

public class P04FoodForPets {

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);

        //всеки трети ден бисквитки
        //бисквитките са 10 % от общо изядената храна

        int days = Integer.parseInt(scan.nextLine());
        double totalAmountFood = Double.parseDouble(scan.nextLine());

        int totalAmountFoodDog = 0;
        int totalAmountFoodCat = 0;
        int totalAmountEatenFood = 0;

        int thirdDayFoodDog = 0;
        int thirdDayFoodCat = 0;

        for (int i = 1; i <= days; i++) {
            int amountFoodDogPerDay = Integer.parseInt(scan.nextLine());
            int amountFoodCatPerDay = Integer.parseInt(scan.nextLine());

            totalAmountFoodDog += amountFoodDogPerDay;
            totalAmountFoodCat += amountFoodCatPerDay;

            thirdDayFoodDog = amountFoodDogPerDay;
            thirdDayFoodCat = amountFoodCatPerDay;

        }
        int totalAmountthirdDay = thirdDayFoodCat + thirdDayFoodDog;
        totalAmountEatenFood = totalAmountFoodCat + totalAmountFoodDog;

        int test1 = totalAmountFoodDog + 1000;
        int test2 = totalAmountEatenFood + 1000;
        double test3 = totalAmountFood / test2;

        int biscuits = Math.round(totalAmountthirdDay * 10 / 100);

        int percentageFoodDog = totalAmountFoodDog / totalAmountEatenFood;
        int percentageFoodCat = totalAmountFoodCat / totalAmountEatenFood;

        System.out.printf("Total eaten biscuits: %dgr.%n", biscuits);
        System.out.printf("%.2f%% of the food has been eaten.%n", totalAmountEatenFood / totalAmountFood * 100.0);
        System.out.printf("%.2f%% eaten from the dog.%n", percentageFoodDog * 100.0);
        System.out.printf("%.2f%% eaten from the cat.%n", percentageFoodCat * 100.0);


    }
}