Since the ban of the BTC mining facilities in China and the drop in difficulty adjustment to -27%, I was thinking if I should start a small mining business in Germany.
...
Where did your -27% come from?...
Difficulty is currently 34093570325203.8
The highest it has been is 36950494067222.4 (8.38% higher)
Currently, 60% through the current difficulty it's at +10.5%
... but who knows what it will be - none of the sites are able to predict it properly
But it's 'possible' the next difficulty will be another ATH.