Point (GRP) is a parameter for evaluating advertising, which originates from television advertising and can be used to compare advertising media. The Gross Rating Point is the number of contacts in relation to a target group. Specifically, it is the net reach in percent multiplied by the average contacts. Since the reach
can be related to a target group, the GRP value can be calculated from the quotient of the number of contacts and the absolute number of target persons of a target group.If, for example, 70 % of a defined target group is reached and each target person has seen the advertisement four times, then the GRP value results from the multiplication of 77 % and 4, as the GRP value is 280.
This evaluation can also be transferred to online advertising.