Armoury/Blacksmith leveling up

I guess many of you wonder how exactly is upgrade at armoury/blacksmith effective, and what is the bonus:

Lv = Bonus __ change
_1 = + 1.50% _+1.50%
_2 = + 3.02% _+1.52%
_3 = + 4.57% _+1.55%
_4 = + 6.14% _+1.57%
_5 = + 7.73% _+1.59%
_6 = + 9.34% _+1.61%
_7 = +10.98% _+1.64%
_8 = +12.65% _+1.67%
_9 = +14.34% _+1.69%
10 = +16.05% _+1.71%
11 = +17.79% _+1.74%
12 = +19.56% _+1.77%
13 = +21.36% _+1.80%
14 = +23.18% _+1.82%
15 = +25.02% _+1.84%
16 = +26.90% _+1.88%
17 = +28.80% _+1.90%
18 = +30.73% _+1.93%
19 = +32.70% _+1.97%
20 = +34.69% _+1.99%

Great info, now I know I haven't been wasting my rez spending it on upgrades to my phalanx and druids

As long as they're added to defence! One of my sitters accidentally added phalanx attack and TTs defence. Oops...

rofl, it's nice to know I'm doing such a good job. lol

LOL! Wulp, my Phalanxes have some decent weapons. Oops! Building an Armoury now.

I love it.....
I didnt know that exactly...
I thought it was .015% for each level....
but man that is effective...
I have 1964 Praets currently with lvl 10 defense
add the bonus 1964 * 1.1605 = 2279.2
that is an extra 315 troops : P
add a lvl 20 city wall which is 81%
2279.2 * 1.81 = 4125.4
Now it is 2161 troops more then I started.... Beautiful....

Question though... is the bonus added together... or is the armory added before and then the city wall taken into effect (like I showed above)
If it was added together then it would be 1.9705 * 1964 = 3870
A hefty difference of 250 troops....
hmm....

Everything is added to the base defense of a single praetorian:
[65]+34.69%[65]+81%[65]=your defense.

The same goes for crop:
lvl 10 cropland=200
If grain mill is 5, and bakery is 3, and you have an oasis+25%:
200+25%*200+15%*200+25%*200=your crop
If you use gold, it increases the red amount, so gold for crop is very effective.

Now that I think more, I'm not sure if oases crop bonus adds to the base crop production, or the one already increased by grain mill and bakery...

One field level 10 = 200 production per hour
Four fields level 10 = 800 PPH
Four fields level 10 + 25% production bonus from the building = 1000 PPH
Four fields level 10 + 25% production bonus from building + 25% oasis = 1250

Thus, the oasis adds to the village production as a whole [from buildings to fields] and is effective as much as gold.

Too much math is involved. I will just trust it when you say its better to upgrade.....

Interesting note on the Resource upgrading thing, it's the most efficient keeping your resource fields even and when you have level 8 of the same fields (assuming you only have 4 in your village) you should boost one up to 10, get 3 levels of the factory, get the fields to 9 then get level 4 factory then max out fields and finish off the factory.

Just say... upgrade this.. and then upgrade this... and all will be good... don't add numbers.. it confuses the blonde... er.... me.... LOL