Imitate Powerpoint slider zoom values in WPF -

i've been trying @ properties of slider in wpf imitate slider zoom of powerpoint, can't find way imitate it.

in powerpoint, min value = 10 , max value = 400. center value equal 100.

in slider in wpf, if min value = 10 , max value = 400. center value not 100. evenly distributed. not in powerpoint.

you have idea on how imitate powerpoint zoom slider?

i guess this topic you're looking for.
put slider this:

<slider name="myslider" minimum="0.1" maximum="2" value="1" largechange="0.1" smallchange="0.01" tickplacement="both" ticks="0,0.5,1,1.5,2"/> 

and e.g. square myslider.value desired zoom factor.