Slaves decrease your score (Little Upsilon)

My country lost about 50 points from its score in one turn, and the only change was me acquiring a slave. Do slaves decrease your score?

No

Does dropping in level (such as from level 5 to level 3)?

Yes, that will do it. You get score momentum when going up or down a level. Negative momentum when decreasing levels and positive momentum when gaining a level.

A 2 level drop will surely sour your country score and it's momentum needs to be turned around.

Haha I guess a 4 level drop will take me out of the top 20 then haha.

Emm, yes.

Adding slaves can increase your government costs. Increased government costs would drop your finance score.