The 10% slider at the top will give you a 10% deflection of that control surface when you have a 10% deflection of your stick. If you lower the slider, it will reduce the deflection of the control surface for a 10% deflection of the stick. And so forth for the other sliders.
The graph to the side shows your stick position, vs control surface location (stick on the horizontal axis, control surface on the vertical). If the sliders are all to the top, the line will be straight from 0 to 100% (10% sick, 10% control surface: 50% stick, 50% control surface: etc.). As you lower the sliders, the line bows downward (example: 50% stick, 10% control surface).
Gunner