Harvest

function solve(vineyardArea, grapePerSquareKM, neededLitersWine, workers){
    vineyardArea = Number(vineyardArea);
    grapePerSquareKM = Number(grapePerSquareKM);
    neededLitersWine = Number(neededLitersWine);
    workers = Number(workers);

    let grapeTotal, wine;

    grapeTotal = vineyardArea * grapePerSquareKM;
    wine = 0.4 * grapeTotal / 2.5;

    if(neededLitersWine > wine) {
        let neededLiters = neededLitersWine - wine;
        console.log(`It will be a tough winter! More ${Math.floor(neededLiters)} liters wine needed.`);
    } else {
        let litersLeft = wine - neededLitersWine;
        console.log(`Good harvest this year! Total wine: ${Math.floor(wine)} liters.`);
        console.log(`${Math.floor(litersLeft)} liters left -> ${Math.floor(litersLeft / workers)} liters per person.`);
    }
}