Saratoga pa 32 301 glide ratio

[Spokewrench]

Hi all
Foreflight just introduced a new tool which shows your glide range only I can't find my glide ratio in my poh however there is a example that shows at 12000 feet I could glide 16.5 nm however there is a correction for terrain I'm not totally understanding . If one of you know the glide ratio or can clarify It will be appreciated

 

[arkvet]

 

[arkvet]

 

[djpfinancial]

 

[Spokewrench]

 

[Orest @ CYFD]

 

[arkvet]

 

[Zulumike]

 

[Zulumike]

 

[JimC]