Good Morning:
I have a tri-bike that I always ride, but am doing a race in FL on a friends P5. So I went and got fitted on the same size P5 locally and the fitter gave me all the numbers to transfer to my friends bike. However I'm a little confused so I hope you can help. I have the following:

Stack to center pad: 631mm
Reach to center pad: 513mm

Stack to center saddle: 742mm
Reach to center saddle: 180mm

Center of pad to shifter: 300mm

Can someone possibly transfer these to one of those bike diagrams so I know what I'm measuring when I put it on the bike I'm borrowing? Some of these make sense such as pad to shifter and stack to center pad, but then others don't seem to make any sense given the numbers the fitter wrote down.

Thank you!