Level 1

0% to

Level 2

Tip /

to gain points, level up, and earn exciting badges like the new
Mission!

View all

## How is lift is actually calculated ?

YogitaBist
Level 3

Likes

20 likes

Total Posts

37 posts

1 solution
View profile

YogitaBist
Level 3

Likes

20 likes

Total Posts

37 posts

1 solution
View profile
YogitaBist
Level 3

19-10-2016

Hi,

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 ?

Regards

Yogita

#### Accepted Solutions (1)

ParitMittal
Level 10

Likes

93 likes

Total Posts

817 posts

349 solutions
View profile

ParitMittal
Level 10

Likes

93 likes

Total Posts

817 posts

349 solutions
View profile
ParitMittal
Level 10

20-10-2016

Hi Yogita,

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) )

Hence

Lift =(0.16543-0.09992)/0.09992=65.56 %

However when rounded off= (0.17-0.10)/0.10= 70 %

Thanks & Regards

Parit Mittal

YogitaBist
Level 3

Likes

20 likes

Total Posts

37 posts

1 solution
View profile

YogitaBist
Level 3

Likes

20 likes

Total Posts

37 posts

1 solution
View profile
YogitaBist
Level 3

20-10-2016

Hi Parit,

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%.

Regards

Yogita