The current difficulty is 20,626,747 TH. The next difficulty is estimated at 20,544,569 TH, 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 151,473. The current block reward is 148,526 SC. Based on this and on the current difficulty, miners are being paid 0.0070 SC/TH, which corresponds to about 0.60 SC/day per GH/s.