Savings

function savings(input) {
    let salary = Number(input[0]);
    let months = Number(input[1]);
    let minimalCosts = Number(input[2]);

    let monthlySavings = salary * 0.70 - minimalCosts;

    console.log(`She can save ${(monthlySavings / salary * 100).toFixed(2)}%\n${(monthlySavings * months).toFixed(2)}`);

    return;
}