preparation christmas

function christmasPreparation() {
    let rollsOfPaper = Number(arg1);
    let rollsOfCloth = Number(arg2);
    let littersOfGlue = Number(arg3);
    let totalSum = Number(arg4);
    let sum = Number(arg5);
    let percent = 25;

    let paperPrice = rollsOfPaper * 5.80;
    let clothPrice = rollsOfCloth * 7.20;
    let gluePrice = littersOfGlue * 1.20;
    totalSum = paperPrice + clothPrice + gluePrice;
    sum = totalSum - (percent / 100);

    console.log(`${sum.toFixed(3)}`);
}

christmasPreparation(4, 2, 5, 13);