what is the score calculation differences between 1,09 and 1,52?
100k in 1,09 = ???? in 1,52..

The only difference is there is an additional multiplier for difficulty in 1.52. Here are the score modifiers per difficulty level:

Settler : 0.4
Chieftain : 0.6
Warlord : 0.8
Noble : 1.0
Prince : 1.2
Monarch : 1.4
Emperor : 1.6
Immortal : 1.8
Deity : 2.0

thank you.....