I have observed that in the results dashboard the lift is not accurate across many experiments.
According to Adobe help documents lift is = CR(Alternative)-CR(Control)/CR(Control)*100
As per the formula : [(0.17%-0.10%)/0.10%]*100 should be 70%
However it shows : 64.44% (Refer attachment).
Is there any other factor involved in the calculation ?
The conversation rate displayed on the interface are rounded of to 2 digits However the lift calculated at the back end from CR ( Control) & CR (Alternative) are not rounded of two digits
Let's say that CR( alternative) =0.16543 %= 0.17 %( rounded off)
CR (Control)= 0.09992 %=0.10 % (( rounded off) )
Lift =(0.16543-0.09992)/0.09992=65.56 %
However when rounded off= (0.17-0.10)/0.10= 70 %
Thanks & Regards
Thanks a lot for the explanation.
But isn't 5% quite a difference. Round off of 64.44% should come to 65% instead of 70%.