/**
 * Setup the registration details
 *
 * @since 2.5
 */
function rcp_calc_total_ajax()
{
    $return = array('valid' => false, 'total' => __('No available subscription levels for your account.', 'rcp'));
    if (!rcp_is_registration()) {
        wp_send_json($return);
    }
    ob_start();
    rcp_get_template_part('register-total-details');
    $return['total'] = ob_get_clean();
    wp_send_json($return);
}
/**
 * Get the recurring total payment
 *
 * @since 2.5
 * @return bool|Int
 */
function rcp_get_registration_recurring_total()
{
    if (!rcp_is_registration()) {
        return false;
    }
    return rcp_get_registration()->get_recurring_total();
}
<?php

if (!rcp_is_registration()) {
    return;
}
?>

<table class="rcp_registration_total_details rcp-table">

	<tbody style="vertical-align: top;">

		<tr>
			<th><?php 
_e('Subscription', 'rcp');
?>
</th>
			<th><?php 
_e('Amount', 'rcp');
?>
</th>
		</tr>

		<tr>
			<td><?php 
echo rcp_get_subscription_name(rcp_get_registration()->get_subscription());
?>
</td>
			<td><?php 
echo rcp_get_subscription_price(rcp_get_registration()->get_subscription()) > 0 ? rcp_currency_filter(number_format(rcp_get_subscription_price(rcp_get_registration()->get_subscription()), rcp_currency_decimal_filter())) : __('free', 'rcp');
?>
</td>