get a single price sans surcharge

gistfile1.txt

function espresso_return_single_price_sans_surcharge($event_id, $number=0) {
	do_action('action_hook_espresso_log', __FILE__, __FUNCTION__, '');
	global $wpdb, $org_options;
	
	$number = $number == 0 ? '0,1' : $number . ',' . $number;
	
	$results = $wpdb->get_results("SELECT event_cost FROM " . EVENTS_PRICES_TABLE . " WHERE event_id='" . $event_id . "' ORDER BY id ASC LIMIT " . $number);
	if ($wpdb->num_rows > 0) {
		foreach ($results as $result) {
			$event_cost = $result->event_cost;
		}
	} else {
		$event_cost = '0.00';
	}
	$event_cost = number_format( $event_cost, 2, '.', '');
	return $event_cost;
}
function get_espresso_price_sans_surcharge_sc($atts) {
	extract(shortcode_atts(array('event_id' => '0', 'number' => '0'), $atts));
	$event_id = "{$event_id}";
	$number = "{$number}";
	ob_start();
	echo espresso_return_single_price_sans_surcharge($event_id, $number);
	$buffer = ob_get_contents();
	ob_end_clean();
	return $buffer;
}
add_shortcode('EVENT_PRICE_SANS_SURCHARGE', 'get_espresso_price_sans_surcharge_sc');