Page Revenue Per thousand impressions (RPM) is calculated by dividing your estimated earnings by the number of page views you received, then multiplying by 1000 in Google.
Page RPM = (Estimated earnings / Number of page views) * 1000
For example, if you earned an estimated $0.15 from 25 page views, then your page RPM would be:
Page RPM = ($0.15 / 25) * 1000=$6.00
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In this tutorial, I tried to brief what is page RPM and how to calculate page RPM. Hope you have enjoyed the tutorial. If you want to get updated, like the facebook page https://www.facebook.com/LearningBigDataAnalytics and stay connected.