Booking Sub Total - without tax, discounts

/*
 * after adding in your functions.php, go to Events > Bookings > Recent Bookings or by clicking an specific
 * http://wp-events-plugin.com/tutorials/how-to-safely-add-php-code-to-wordpress/
 * click on the Gear icon and drag&drop field "SubTotal"
 */
function my_em_bookings_table_cols_template_subtotal($template, $EM_Bookings_Table){
	$template['sub_total'] = 'SubTotal';
	return $template;
}
add_action('em_bookings_table_cols_template', 'my_em_bookings_table_cols_template_subtotal',10,2);

function my_em_custom_booking_form_cols_subtotal($val, $col, $EM_Booking, $EM_Bookings_Table, $csv){
	if( $col == 'sub_total' ){
		$val = $EM_Booking->get_price_base(true);

	}
	return $val;
}
add_filter('em_bookings_table_rows_col','my_em_custom_booking_form_cols_subtotal', 10, 5);