group conversion rate number of consumers total number of im…
group conversion rate number of consumers total number of impressions control 2.50% 15,000 100,000 treatment 3.50% 400,000 9,900,000 Grand Total 3.40% 415,000 10,000,000 Assuming that TaskaBella earns $50 for each converted consumer and its CPM in the ad experiment was $10, calculate the ROI of the campaign. In your calculation, be careful about UNITS.