finalCompetition.js

function finalCompetition(input) {
    let index = 0;
    let dancers = Number(input[index]);
    index++;
    let score = Number(input[index]);
    index++;
    let season = input[index];
    index++;
    let destination = input[index];
    index++;
    let prize = 0;
    let netPrize = 0;

    switch (destination) {
        case "Bulgaria":
            netPrize = dancers * score;
            if (season === "summer") {
                prize = netPrize - (netPrize * 0.05);
            } else if (season === "winter") {
                prize = netPrize - (netPrize * 0.08);
            }
            break;
        case "Abroad":
            netPrize = (dancers * score) + (0.50 * (dancers * score));
            if (season === "summer") {
                prize = netPrize - (netPrize * 0.1);
            } else if (season === "winter") {
                prize = netPrize - (netPrize * 0.15);
            }
            break;
    }
    let donation = prize * 0.75;
    let moneyPerDancer = (prize - donation) / dancers;

    console.log(`Charity - ${donation.toFixed(2)}`);
    console.log(`Money per dancer - ${moneyPerDancer.toFixed(2)}`);
}

finalCompetition(["1", "89.5", "summer", "Abroad"]);