Screen percentage is also incredibly dependent on your screen size. When I replicate their examples, I get far more 'organic' searches on my screen, because I

Screen percentage is also incredibly dependent on your screen size. When I replicate their examples, I get far more 'organic' searches on my screen, because I have four times the screen real estate. Google has to delicately balance their advertising with organic results, and this balance works less well at smaller screen sizes.