What is the difference between consent Rate and Opt-in Rate?

The Consent Rate: measures the proportion of positive consents within the total consents collected. 

It is calculated as follows: Consent Rate = opt-ins / total choices. The Consent Rate metric is calculated based on the total choices made on the banner (total choices), rather than the number of times the banner is shown (total notices).

The Opt-In Rate: Is the number of consents divided by the total number of notices. It would be the percentage of users who have responded positively within a consent notice that appeared. Opt-In Rate = opt-ins / total notices

In summary; The consent rate is based on the number of choices made, either positive choices/total choices, while the opt-in is based on the number of notices displayed, either positive choices/notices displayed.

The schema shared in this article can help you to better understand.