How can I ensure that the displayed prices in the PayPal window reflect gross prices instead of net prices?

To ensure that the displayed prices in the PayPal window reflect gross prices instead of net prices, you can adjust your code to include the necessary tax or fees in the total amount sent to PayPal. Make sure to calculate the total amount including taxes and fees before passing it to PayPal for payment processing.

<?php
// Calculate total amount including taxes and fees
$netPrice = 100; // example net price
$taxRate = 0.1; // example tax rate
$fees = 5; // example fees
$grossPrice = $netPrice + ($netPrice * $taxRate) + $fees;

// Pass the gross price to PayPal for payment processing
// Your PayPal integration code here
?>