Tennis Ranklist

function tennisRanklist(input) {
    let tourney = Number(input.shift());
    let points = Number(input.shift());
    let win = 0;
    let total = 0;

    for (let i = 0; i < tourney; i++) {
        let stage = input.shift();

        switch (stage) {
            case "W":
                total += 2000;
                win++;
                break;
            case "F":
                total += 1200;
                break;
            case "SF":
                total += 720;
                break;
        }
    }

    console.log(`Final points: ${total + points}`);
    console.log(`Average points: ${Math.floor(total / tourney)}`);
    console.log(`${(win / tourney * 100).toFixed(2)}%`);
}