Based on Impressions
For every 100.000 digital impressions, InBrowser ordered the advertiser gets 7% of impressions for free. In this case, it means that she gets 7000 impressions for free.
Non-Progressive
...
The unit count shows now that the customer has bought 240K impressions for total revenue of 13200 €. This earns him 7% * 240000 = 16800 impressions.
...