I have results for a a 5 variant pricing test:
A 0% (control group)
Below are my results (all normalised to give if exactly 20% of traffic goes through the variant, this is the number of bookings we'd get) variant Bookings
If I want to calculate the change in bookings for each % change, how would I do that?
1) +5% change = (B-A)=(90-100)=-10 bookings
or 2) +5% change = (B-A)+(A-C) = (90-100)+(100-150)=-60 (for 2, I have a feeling I should divide the result by 2 (if this is the right way) since otherwise you're double counting the effect of the +5% change) - this method takes into consideration the +5% change from both direction
Or if theres any other statistically correct/better way to calculate this, please let me know.