Supplies For School

function suppliesForSchool(input) {
let pens =  Number(input[0]);
let markers = Number(input[1]);
let liters = Number(input[2]);
let discount = Number(input[3]);

let finalPriceForPens = pens * 5.80;
let finalPriceForMarkers = markers * 7.20;
let finalPriceForLiquid = liters * 1.20;

let finalPrice = finalPriceForPens + finalPriceForMarkers + finalPriceForLiquid;

let priceWithDiscount = discount / 100;
let total = finalPrice - (finalPrice * priceWithDiscount);

    console.log(total);
}