Could someone explain me, why a 4.5% increase in conversion rates increases sales from 1,000$ to 4,500$? For me, 1,000$ * 1.045 = 1,045$
As seen in their info page here:
https://optimizely.appspot.com/whatisabtesting
We should definitely make this clearer in the infographic but the 1% and 4.5% numbers represent the conversion rates for those two variations. They are not the INCREASE in conversion rates. Hence going from 1% to 4.5% is an increase of 350% and that's why they get $4,500 in sales instead of $1,000 in sales. Does that make sense?