How is conversion calculated on Google?

Question

Google Ads

Hello.
Please tell me how Google calculates the conversion if the user entered the site through advertising, but did not complete the conversion, but left, and then returned, but not through advertising, but for example from bookmarks or from another source (Google will count his conversion?)
Or only when the user enters through advertising?

Answer 1

analytics will count on the last click, will be a source not advertising