Google Ads adds two unique metrics to permit you to better remember your impressions: impact share IS and absolute top impression share ATIS. On one hand, IS calculates the entire variety of ad impressions divided by the entire number of eligible ad impressions. This metric helps you take note if your ads could reach more people if you adjusted your bidding method higher. ATIS, on any other hand, calculates the variety of times your ad appeared in the top position divided by the whole variety of eligible impressions.
It is useful for opting for if you should increase your ad budget to rank higher.