Illustrative rolling-average example
No new contract rule- Window A60 + 70 + 80 = 210 ÷ 3 = 70
41–70 completed sessions/month → $1,295/month.
- Next window70 + 80 + 90 = 240 ÷ 3 = 80
71–100 completed sessions/month → $1,595/month.
The new band takes effect the following month, with notice. Prices are reviewed each January. This example uses whole-number averages and does not create a rounding rule; edge cases belong in the signed agreement.