Why do my skeleton's damage differ from my hotkeys and my skill tree?

[diablo loves donutz]

Hi everyone. I'm a little confused on something and I need some help. When I look at the stats for my skellies on my hotkey all of their stats match up to the info on my skill tree, with the exception of damage. When I look at the damage of my skellies on my hotkey, 214-217, it differs from that of on my skill tree, 228-231. I know this difference in damage is not much, but it still bothers me. Can anyone explain why it does this?

[LozHinge the Unhinged]

The problem is likely to be the LCS, aka the Lying Character Screen.
Try this link (http://tph.tuwien.ac.at/~gottwald/necro_pet_calculator.html)for a more accurate calculation of your damage. It's a lovely tool, beloved of Necros throughout this forum!