how to downsize GPS popup window

[obie311]

I'd like to proportionately downsize my GPS popup window so it takes up a little less real estate on my screen. Can someone shoot me the correct syntax to insert in my panel.cfg to make the window smaller and preferably the upper right screen quadrant?

Background_color=0,0,0
size_mm=1280,650
window_size_ratio=1.000
position=2
visible=0
ident=GPS_PANEL
window_size= 0.710, 0.552
window_pos= 0.290, 0.480