Increase/Decrease Price Quantity Change

quantity_change_price.php

add_action('wp_footer', function() {
?>
<script>

jQuery(document).ready(function($) {
    setTimeout(function() {
        $('.pewc-has-extra-fields form.cart button.minus, .pewc-has-extra-fields form.cart button.plus').click(function(e) {
            $(this).parent().find('.quantity input.qty').trigger('change');
        });
    }, 1000);
});

</script>
<?php
});