nastyking

Previously, i used the eCPM (revenue per 1000 impressions) to determine the profitability of any campaign.

If your project gets 10k impressions for example and generates $ 300 in revenue it would mean a $ 30 eCPM

It becomes more complicated when you are comparing campaigns where the number of impressions differs a lot.

example:

campaign A: 100k impressions - $ 3000 => $ 30 eCPM
campaign B: 1k impressions - $ 40 => $ 40 eCPM

although campaign B has a higher eCPM, campaign A has a "more stable" eCPM because it has more impressions.

Any ideas how to put that in a mathematical formula?

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