invp_get_the_payment( $post_ID = null )

function invp_get_the_payment( $post_ID = null )
{
	if( empty( $post_ID ) )
	{
		$post_ID = get_the_ID();
	}

	if ( invp_is_sold( $post_ID ) )
	{
		return '';
	}

	$payment = INVP::get_meta( 'payment', $post_ID );
	if( empty( $payment ) )
	{
		return '';
	}

	return '$' . number_format( $payment, 0, '.', ',' );
}