birthday party

function happyBirthday(arg) {
   let hallRental = Number(arg);

   cakePrice = hallRental * 0.20;
   drinksPrice = cakePrice * 0.55;
   animatorPrice = hallRental * 1/3;
   budget = hallRental + cakePrice + drinksPrice + animatorPrice;

   console.log(budget);
 }

 happyBirthday("2250");