Food For Pets

function foodforPets(input) {
    let days = Number(input[0]);
    let totalFood = Number(input[1]);

    let biscuits = 0;
    let totalDogFood = 0;
    let totalCatFood = 0;
    let dayCounter = 1;

    for (let i = 2; i <= days * 2; i += 2) {
        let dogFood = Number(input[i]);
        let catFood = Number(input[i + 1]);


        if (dayCounter % 3 === 0) {
            biscuits += (dogFood + catFood) * 0.10;
        }
        totalDogFood += dogFood;
        totalCatFood += catFood;

        dayCounter++;
    }
    let totalFoodEaten = totalDogFood + totalCatFood;
    console.log(`Total eaten biscuits: ${Math.round(biscuits)}gr.`);
    console.log(`${(totalFoodEaten / totalFood * 100).toFixed(2)}% of the food has been eaten.`);
    console.log(`${(totalDogFood / totalFoodEaten * 100).toFixed(2)}% eaten from the dog.`);
    console.log(`${(totalCatFood / totalFoodEaten * 100).toFixed(2)}% eaten from the cat.`);
}