THE COMPLETION BACKWARDS PRINCIPLE by THE TUBES has sold 65,000 copies in Canada and New Zealand.
THE COMPLETION BACKWARDS PRINCIPLE certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Canada |
50,000 | 1x Gold | 1983 |
Canada Sales: 50,000
Certification / note: 1x Gold
Certification Date / sales as of: 1983
|
 New Zealand |
15,000 | 1x Platinum |
New Zealand Sales: 15,000
Certification / note: 1x Platinum
Certification Date / sales as of:
|
|
| Total sales | 65,000 | (in 2 countries) |
Total
Sales: 65,000
(in 2 countries)
|
Year-end chart performance for THE COMPLETION BACKWARDS PRINCIPLE
| Chart 1981 | Rank |
| New Zealand Albums (RMNZ) |
46 |