How the Meta Ads auction works and how it relates to cost per click

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Basics of Meta Ads auction format
Meta Ads uses a "real-time auction" system in which multiple advertisers compete for ad space. The ads that are displayed are determined based on not only the bid amount set by the advertiser, but also the quality of the ad and user response.

This auction takes place thousands of times per second.Our bahamas number data goal is to deliver the most effective ads to users at the right time..

Three elements of Meta Ads bid evaluation
Evaluation elements Contents Impact
Advertiser bid The CPC or CPM you set (the cost required to display an ad 1,000 times) High
Estimated Action Rate Click and conversion probability Medium
Ad Quality User Experience and Relevance Medium
How is the overall score calculated?
Meta Ads calculates the overall score using the following formula:

Overall score = bid amount x estimated action rate x ad quality score

The higher your overall score, the more likely you are to rank highly for a lower cost per click..