I see. I was thinking about the husngs which all have 3% rake so with those always having the same percentage of rake then someone playing £10 games would get 10x more points than someone playing £1 games. Is that right?
And if you changed stakes midway, without completing the challenge, then it would just take the average of the buy ins and adjust the points to that?
Yes if the rake percentage is the same you will get 10x more by playing 10s compared to 1s.
For mixing stakes, If we said there were 10 steps at 1e to get 100 points and at 10e to get 1000 points.
Then if you divide the points by the steps,100 / 10 = 10 and 1000/10 = 100 and you completed 5 steps at each level you would get 550 points(5x10 and 5x100).