ACT 1 by MONTA & BROTHERS (もんた & ブラザーズ) has sold 0 copies on streaming services.
ACT 1 certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of |
| Total sales | 0 | Album-equivalent unit |
Total
Sales: 0
Album-equivalent unit
|
Year-end chart performance for ACT 1
| Chart 1980 | Rank | Sales |
 Japanese Albums (Oricon) |
14 | 346,000 |