Outpost Upgrade Tree
Hover on a square to see the upgrade effect.
The above values do NOT stack, so take for example the Amarr office upgrades (last column) you don't end up with +15 offices (that's the values stacked) what you end up with is 7 offices if you upgraded all 3 tiers.
The same applies to the % bonuses, the figure you get in the upgrade is what you get, it is NOT stacked against a previous upgrade.
Yes in my honest opinion I do think the Caldari figures in the second column are not correct - have bug reported it. I've received a response to my bug report and they have said it is not a bug.