Video campaign up and running, check! Now how’s it doing? Holly has just a few minutes to pull some data together on how her audience is responding to the ads. In particular, she wants to know how well her ads are resonating — whether viewers are interacting with the ads they see.
What metric should she investigate in AdWords Reporting?
Clickthrough rate (CTR)
View Through Rate (VTR) is the number of completed views of a skippable ad over the number of initial impressions.
VTR = Complete views (user did not skip) / Impressions (ad rendered)
Read more here: https://support.google.com/adxbuyer/answer/2961338