According to HitsDailyDouble, based on first day sales Miley's new album Breakout is on pace to sell between 380-400 thousand copies for the week.
While this is an impressive number Miley might not be number 1 next week. Country band Sugarland's new album Love on the Inside is on pace to sell about the same amount as Breakout. We'll have to wait for the full week numbers to find out who will be number one.