02. Shopping PHP

<?php
$budget = floatval(readline());
$numOfChocolate = intval(readline());
$quantityMilk = floatval(readline());

$mandarin = 0.20;
$chocolate = 0.65;
$literMilk = 2.70;
//$quantityMandarin = $numOfChocolate - $numOfChocolate * 0.35;

$totalPriceChocolate = $numOfChocolate * $chocolate;
$totalPriceMilk = $quantityMilk * $literMilk;
$totalPriceMandarin = floor($numOfChocolate - ($numOfChocolate * 0.35)) * $mandarin;

$total = $totalPriceChocolate + $totalPriceMilk + $totalPriceMandarin;

$leftMoney = abs($budget-$total);

if($total <= $budget){
    printf("You got this, %.2f money left!",$leftMoney) ;
}else{
    printf("Not enough money, you need %.2f more!",$leftMoney) ;
}