The View menu items 200%, 150%, 100%, 75%, 50%, Fit to Page, Fit to Window and CustomÂ… control the scale used to display a drawing in its drawing window. 100% is the scale used by most Windows programs to show objects at their natural size. The other scales make objects look smaller or bigger than they really are.
These scale factors have no effect on the size of shapes and lines when they are printed out, only as viewed on the screen.