我正在尝试对基于meta\\u键交易金额的帖子列表进行排序，这将首先显示最高的交易，然后逐步降低到较小的交易金额。交易金额将在1000至900万之间。目前，下面的代码正在根据第一个数字对交易金额进行排序。因此，如果我有一个6000和6000000的交易，他们会将它们并排放置，而不是先显示6000000。交易金额从CMB2内的自定义元数据库中提取。我的代码中是否缺少了排序无法识别逗号后的金额的内容？

我的WP\\U查询

     <?php
            $transaction = new WP_Query( array( 
                \'post_type\'         => \'transactions\', 
                \'paged\'             => $paged, 
                \'posts_per_page\'    => 50,
                \'orderby\'           => array( \'meta_value_num\' => \'ASC\' ),
                \'meta_key\'          => \'deal_amount\',
            ) );

        if ( $transaction->have_posts() ) : ?>
        <?php 
        while ( $transaction->have_posts() ) : $transaction->the_post();
            $deal_amount = get_post_meta( get_the_ID(), \'deal_amount\', true );
            $property_type = get_post_meta( get_the_ID(), \'property_type\', true );
            $property_size = get_post_meta( get_the_ID(), \'property_size\', true );
        ?>
        <article class="col">

            <div class="trans-content">
                <?php the_title(\'<h3>\', \'</h3>\'); ?>
                <?php echo \'<h4>$\' . esc_html($deal_amount) . \'</h4>\'; ?>
                <?php echo esc_html($property_type); ?><br>
                <?php echo esc_html($property_size); ?><br>
                <?php $terms_as_text = get_the_term_list( $post->ID, \'loan-type\', \'\', \', \', \'\' ) ; echo strip_tags($terms_as_text); ?></p>
            </div>
        <?php edit_post_link(\'edit\'); ?>
        </article>
        <?php endwhile; wp_reset_postdata(); ?>
        <?php else : endif; ?>

add_action( \'cmb2_admin_init\', \'transactions_metabox\' );
 function transactions_metabox() {
$prefix = \'transactions_\';
$cmb = new_cmb2_box( array(
    \'id\'            => $prefix . \'transactions\',
    \'title\'         => esc_html__( \'Transactions\', \'cvcapital\' ),
    \'object_types\'  => array( \'transactions\', ),

) );
$cmb->add_field( array(
    \'name\'              => \'Deal Amount\',
    \'id\'                => \'deal_amount\',
    \'type\'              => \'text\',
    \'before_field\'      => \'$\', 
    \'column\'            => true, // Display field value in the admin post-listing columns
    \'before_display\'    => \'$\',
) );