Air cell percentage by weight at 7 days?

[seventreesfarm]

Can anyone point me to a chart or link for air cell percentages at 7 days?
I thought I had a link saved, but now I can't find it, and I just weighed all my eggs

28 New Hampshire eggs, and 3 Olivers.

 

[sumi]

Here's one for day 7,14 and 18:

 

[seventreesfarm]

Thnaks, but I was hoping for weight info too. I know they're supposed to lose 12% or so of weight, just not how much of that 12% by day 7. They are dark shelled eggs, so it's hard to see the space clearly.

 

[seventreesfarm]

Here we go - http://www.falconryforum.co.uk/showpost.php?s=65055d8adf71bb7454f6ff10217614d9&p=575416&postcount=7

Lot's of math involved, but good info.