Ad RPM is simply meaning the ratio between Estimated earnings and total ad impression are multiplied by 1000. In calculation we see that
Ad RPM = (Estimated earnings / Ad impressions) * 1000
To increase and decrease Adsense earnings Ad RPM plays great role indeed, since the advertising bit types are different and many advertisers prefer cost-per-thousand impressions (CPM) rather than CPC or CPE types so you can see a gradual rise up or drop in Adsense earnings which are mainly affected by Ad RPM
Ad RPM = (Estimated earnings / Ad impressions) * 1000
To increase and decrease Adsense earnings Ad RPM plays great role indeed, since the advertising bit types are different and many advertisers prefer cost-per-thousand impressions (CPM) rather than CPC or CPE types so you can see a gradual rise up or drop in Adsense earnings which are mainly affected by Ad RPM
