The group BOYNEXTDOOR surpassed their previous album's initial sales (album sales for a week based on the release date) in just one day of their comeback.

According to Hanteo Chart, a website that aggregates album sales, BOYNEXTDOOR's third mini-album '19.99' sold 609,666 copies on the 9th, the day of its release, and took first place on the daily album chart (as of September 9th). This is not only an increase of about 56% compared to the first-day sales of their previous second mini-album 'How?', but also surpasses the initial sales (531,911 copies).

Meanwhile, BOYNEXTDOOR will make their comeback stage on Mnet's 'M Countdown' at 6 PM on the 12th.