What this is
Difference of two cumulative print-run claims by the publisher, divided by elapsed months.
The values
- Launch month 18 June 2025 to 07-18 copies: 600,000
- 18 July 2025 to 1 June 2026 added copies: 200,000
- Months after launch: 10.5
- Copies per month after: 19,100
- After rate as % of launch month: 3.2
Where it comes from
Our calculation from other figures in the trainer’s notes:
Show the working
- (800,000-600,000)/ (318 days / 30.44) = 200,000/10.45 = 19,100 per month
- 19,100/600,000 = 3.2%