HELLO by OKAMOTO MAYO (岡本 真夜) has sold 800,000 copies in Japan.
HELLO certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Japan |
800,000 | 2x Platinum | June 1998 |
Japan Sales: 800,000
Certification / note: 2x Platinum
Certification Date / sales as of: June 1998
|
| Total sales | 800,000 | (in 1 country) |
Total
Sales: 800,000
(in 1 country)
|
Year-end chart performance for HELLO
| Chart 1998 | Rank | Sales |
| Japanese Albums (Oricon) |
41 | 679,070 |