View through rate (VTR) refers to the total completed view without skipping this view can from anywhere. Calculate your account/channel/ad view-through rate by this online calculator.
How to Measure View-Through Rate?
You can manually measure the VTR by the following rule. For measurment the view through rate you need to two data Total completed views and Total impression/reach. Now see the formula:
View-Through Rate= (Total Completed View ÷ Total Impressions)
View Through Rate Facebook Formula:
Facebook doesn’t give you the VTR result but you can manually calculate Facebook VTR by the following formula.
Facebook View Through Rate= (Total completed views ÷ People Reached)