Box 1: 6 -
5 latest daily recovery points, which includes the weekly backup from the previous Sunday, plus the monthly recovery point.
Box 2: 8 -
5 latest daily recovery points, plus two weekly backups, plus the monthly recovery point.
Reference:
https://social.technet.microsoft.com/Forums/en-US/854ab6ae-79aa-4bad-ac65-471c4d422e94/daily-monthly-yearly-recovery-points-and-storage-used? forum=windowsazureonlinebackup