其实这里的 and counting 是习语，意思是“还在继续增加”：

His new movie’s ticket sales add up to $66 million, and counting.

他的这部新电影的票房合计 6,600 万元，还且还在继续上升。

更多例句如：

He is 47 years old and counting. 他47岁了，年纪越来越大。

They have been in business for 50 years and counting. 他们做生意已经50年了，而且还在继续。

So far we’ve had over 4,000 calls, and counting. 到现在为止，我们已经接到4,000多个电话，并且数目还在增加。

There is a 1,700-year-old tea tree still living in southern China which is more than 100 feet tall and counting. 中国南方生长着一棵已有1,700年历史的茶树，高100多英尺，而且还在不断长高。