EM - Show Subtotal in Single Bookings Booking Form

<?php
/********************
    This snippet will enable a sub total in the Single Bookings Booking Form for Events Manager Pro.
********************/
function stonehenge_em_single_booking_subtotal($EM_Ticket) {
    $locale         = get_bloginfo('language');
    $ticket_price   = $EM_Ticket->get_price(false);
    $currency       = get_option('dbem_bookings_currency');
    $taxRate        = get_option('dbem_bookings_tax');
    $taxAdd         = get_option('dbem_bookings_tax_auto_add');
    $taxName        = __('Tax', 'events-manager');

    // Create the Sub Total section on the Booking From.
    ?>
    <style>
        /* Remove this style section if you DO want to show additional tax info, or leave it to hide. */
        #subTax {display:none !important;}
        #extraInfo {display:none !important;}
    </style>

    <?php
    if( get_option('dbem_bookings_tickets_single_form') ) {
        echo '<tr><td><label>' . __('Sub Total', 'events-manager') . '</label></td>';
        echo '<td colspan="2"><strong><span id="subTotal"></span></strong> <small><span id="subTax"></span></small></td></tr>';
    } else {
        echo '<p class="input-user-field em-subtotal"><label>' .  __('Sub Total', 'events-manager') . '</label>';
        echo '<strong><span id="subTotal"></span></strong> <small><span id="subTax"></span></small></p>';
    }
    ?>

    <!-- This is where the real magic happens! -->
    <script>
    jQuery.noConflict();
        // Add 0 to Spaces, making required more clear. It will also make the initial Subtotal 0.00.
        jQuery(".em-ticket-select").prepend("<option value='0' selected='selected' disabled='disabled'>---</option>");

        Locale          = '<?php echo $locale; ?>';
        TicketPrice     = <?php echo $ticket_price; ?>;
        Currency        = '<?php echo $currency; ?>';
        TaxRate         = <?php echo $taxRate; ?>;
        TaxName         = '<?php echo $taxName; ?>';
        addTax          = '<?php echo $taxAdd; ?>';
        Spaces          = jQuery(".em-ticket-select option:selected").val();
        Price           = (Spaces * TicketPrice).toFixed(2);

        // Process Tax added to Ticket Price?
        if( addTax == '1' ) {
            Tax = (Price / (100 + TaxRate) * TaxRate).toFixed(2);
            inclTax = '(incl. ';
        }
        else {
            Tax = (Price / 100 * TaxRate).toFixed(2);
            inclTax = '(excl. ';
        }

        formattedPrice  = Number(Price).toLocaleString(Locale, {style: 'currency', currency: Currency });
        formattedTax    = Number(Tax).toLocaleString(Locale, {style: 'currency', currency: Currency });

        // Add Tax info to the default ticket price field.
        jQuery(".ticket-price strong").html(Number(TicketPrice).toLocaleString(Locale, {style: 'currency', currency: Currency }));
        jQuery(".ticket-price").append("<span id='extraInfo'> p.p. <small>" + inclTax + TaxRate + "% " + TaxName + ")</small></span>");

        // Display initial sub total amount on page load.
        jQuery("#subTotal").html( formattedPrice );
        jQuery("#subTax").html( inclTax + formattedTax + ' ' + TaxName + ')' );

        // Change the sub total according to the selected spaces.
        jQuery(".em-ticket-select").change(function() {
            var newSpaces   = jQuery(".em-ticket-select option:selected").val();
            var newPrice    = (newSpaces * TicketPrice ).toFixed(2);
            var newTax      = (newPrice / (100 + TaxRate) * TaxRate ).toFixed(2);
            jQuery("#subTotal").html( Number(newPrice).toLocaleString(Locale, { style: 'currency', currency: Currency }) );
            jQuery("#subTax").html(inclTax + Number(newTax).toLocaleString(Locale, { style: 'currency', currency: Currency })+' '+TaxName+')');
        });

        // Optional: Add the required asterisk after the Spaces label. Comment out if needed.
        jQuery("label[for=em_tickets]").append(' <span class="em-form-required">*</span>');

    (jQuery);
    </script>
    <?php
}
if( get_option('dbem_bookings_tickets_single_form') ) {
    add_action('em_booking_form_tickets_loop_footer', 'stonehenge_em_single_booking_subtotal');
} else {
    add_action('em_booking_form_ticket_footer', 'stonehenge_em_single_booking_subtotal');
}