The current difficulty is 1,094 PH. The next difficulty is estimated at 1,096 PH, a change of +0.12%. 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 59,257. The current block reward is 201,982.5 SCP. Based on this and on the current difficulty, miners are being paid 179.0078 SCP/PH, which corresponds to about 15.47 SCP/day per GH/s.