This is because we're separating out your Search and Display network campaigns in order to give you more data points to work with. You'll notice that if you add the stats for the two together, the total will equal the stats for the campaign as a whole in your native Google Ads interface.

You can choose to display only Search or only Display network campaigns within your dashboard by first clicking the "Settings slider" in your Google Ads module, then clicking the All Networks drop down under the "Filters" heading:

In addition, by filtering the network you would be able to gain more insight on each network's performance.