The current difficulty is 634.2 PH. The next difficulty is estimated at 631.6 PH, a change of −0.40%. The difficulty changes globally every time a new block is mined, based on how fast blocks are being found.
Hash Price Report
The last block was at height 184,910. The current block reward is 115,089 SC. Based on this and on the current difficulty, miners are being paid 176.0382 SC/PH, which corresponds to about 15.21 SC/day per GH/s.